Justice LOHR
delivered the Opinion of the Court.
We granted certiorari to review the court of appeals’ decision in People in Interest of M.C., 895 P.2d 1098 (Colo.App.1994), a case brought by the Department of Social Services (State) on behalf of M.C., a minor child, to determine whether S.O.V. is M.C.’s father and to obtain payment of child support. The issue before us is whether a jury verdict of non-paternity in that case is binding on M.C. by operation of the doctrines of res judicata and collateral estoppel so as to prohibit M.C., who was not made a party to the case before the jury verdict was returned, from later intervening and seeking a determination that [357]*357S.O.V. is her father. The trial court denied M.C.’s petition to intervene and granted S.O.V.’s motion to dismiss the case, relying on the conclusion that M.C. is bound by the jury verdict of non-paternity under the doctrines of res judicata and collateral estoppel. The court of appeals reversed on the basis that res judicata and collateral estoppel do not apply because M.C. was neither a party nor in privity with the State in the proceedings that eventuated in the jury verdict. Id. at 1102. We conclude that the doctrines of res judicata and collateral estoppel are not applicable because no final judgment had been entered on the jury verdict when M.C. sought to intervene, and M.C.’s motion to intervene was filed in the same case in which the jury verdict was delivered. We also hold that M.C. was not a party or in privity with the State in the proceedings that led to the jury verdict of non-paternity. For these two independently sufficient reasons, we affirm the judgment of the court of appeals, which reverses the trial court’s order of dismissal and remands the ease to that court for further proceedings.
I.
In November 1989, the State commenced this action by filing a “Petition for Parentage Determination and To Obtain Child Support” on behalf of M.C., who was then eight years old, pursuant to the Uniform Parentage Act, which appears in its present form at sections 19-4-101 to -130, 8B C.R.S. (1995 Supp.). The State petitioned for declaratory and other relief, including a determination that S.O.V. is the father of M.C. and is therefore obligated for medical expenses and support payments for the benefit of the child. M.C. was referred to as the “petitioner” in the initial pleading, but no guardian ad litem or other fiduciary was appointed to represent her. The case was tried to a jury, which determined that S.O.V. is not M.C.’s father and so has no duty to provide financial support for the child. This determination was made notwithstanding evidence of blood test results indicating a 99.9 percent probability that S.O.V. is M.C.’s father.
The State moved for a judgment notwithstanding the verdict or in the alternative for a new trial, and the trial court granted the motion for judgment notwithstanding the verdict. On appeal, the Colorado Court of Appeals reversed, holding that there was sufficient evidence to sustain the jury verdict, and remanded the case for consideration of the State’s alternative motion for a new trial, which was based on alleged jury misconduct. People in Interest of M.C., 844 P.2d 1313 (Colo.App.1992).
The trial court held a hearing on April 1, 1993, and denied the new trial motion on the jury misconduct ground but took under advisement an assertion newly presented by the State in conjunction with the motion for new trial that the proceedings were jurisdie-tionally defective because the child had not been represented by a guardian ad litem.
Thereafter, on April 5, 1993, the trial court in a written order addressed the State’s request for a new trial based on the alleged jurisdictional defect resulting from failure to join the child as a party. It concluded that the child was not properly represented and thus was not a party to the action. The court noted, on the one hand, that although the State’s contention that the court should therefore grant a new trial because it did not have subject matter jurisdiction “may be technically appropriate,” such an argument by the State “is not supported by equity” because the State had previously claimed to represent the child. On the other hand, the court noted that it must balance against such inequity the importance of having “a correct determination of paternity because the present verdict leaves the child fatherless” and because the child, not having been properly represented, would have a continuing right “to pursue a collateral attack on the judgment of non-paternity.” Because such lack of finality was not in the best interests of the child, the parents, or the State, the court for the first time ordered appointment of a guardian ad litem for M.C. “to investigate the circumstances presented by the present status of this litigation and to determine whether the Child’s interests warrant a collateral attack on the judgment represented by the jury’s verdict of non-paternity.” The court’s order contained no ruling on the request for a new trial but stated that upon [358]*358receipt of the guardian ad litem’s report it would “schedule a conference with all counsel, including [the guardian ad litem] to determine how to proceed.”1
The guardian ad litem conducted an investigation and filed a report on June 3, 1993, stating “that it is in [M.C.’s] best interest to exercise her right to collaterally attack the jury verdict of non-paternity.” After considering the guardian’s report, the trial court set the matter for a status conference with counsel “to determine the procedures to be followed to implement the [guardian ad li-tem’s] recommendation, and to determine if any other disposition short of a new trial is viable.” At the status conference on August 5, 1993, the trial court directed the attorney for the child to file a petition on behalf of the child “either in this action or in a new case as his research dictates.” The child’s attorney then filed a petition for declaration of paternity and a motion to intervene on behalf of M.C., both bearing the same case number as the action that resulted in the jury verdict. On August 17, 1993, the trial court issued a written order that M.C. “shall and hereby is permitted to intervene in the within action.” S.O.V. then moved “to dismiss this action based on the doctrines of res judicata and collateral estoppel,” relying on the jury verdict and stating that the verdict “has been upheld after a direct appeal and is a final judgment.” The trial court granted the motion to dismiss, ruling that although the child was not a party to the action preceding the jury verdict, she was in privity with the State, which was acting under the authorization of section 19-4-107, 8B C.R.S. (1995 Supp.), and “through its common law duty under the doctrine of Parens Patriae.” The court held that M.C. therefore was barred by principles of res judicata and collateral estop-pel from challenging the jury determination that S.O.V. is not her father.
On appeal, the court of appeals reversed. People in Interest of M.C., 895 P.2d 1098, 1102 (Colo.App.1994). That court held that M.C. was not in privity with the State because the child had interests in the paternity determination of a “different and broader nature” than those of the State. Id.
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Justice LOHR
delivered the Opinion of the Court.
We granted certiorari to review the court of appeals’ decision in People in Interest of M.C., 895 P.2d 1098 (Colo.App.1994), a case brought by the Department of Social Services (State) on behalf of M.C., a minor child, to determine whether S.O.V. is M.C.’s father and to obtain payment of child support. The issue before us is whether a jury verdict of non-paternity in that case is binding on M.C. by operation of the doctrines of res judicata and collateral estoppel so as to prohibit M.C., who was not made a party to the case before the jury verdict was returned, from later intervening and seeking a determination that [357]*357S.O.V. is her father. The trial court denied M.C.’s petition to intervene and granted S.O.V.’s motion to dismiss the case, relying on the conclusion that M.C. is bound by the jury verdict of non-paternity under the doctrines of res judicata and collateral estoppel. The court of appeals reversed on the basis that res judicata and collateral estoppel do not apply because M.C. was neither a party nor in privity with the State in the proceedings that eventuated in the jury verdict. Id. at 1102. We conclude that the doctrines of res judicata and collateral estoppel are not applicable because no final judgment had been entered on the jury verdict when M.C. sought to intervene, and M.C.’s motion to intervene was filed in the same case in which the jury verdict was delivered. We also hold that M.C. was not a party or in privity with the State in the proceedings that led to the jury verdict of non-paternity. For these two independently sufficient reasons, we affirm the judgment of the court of appeals, which reverses the trial court’s order of dismissal and remands the ease to that court for further proceedings.
I.
In November 1989, the State commenced this action by filing a “Petition for Parentage Determination and To Obtain Child Support” on behalf of M.C., who was then eight years old, pursuant to the Uniform Parentage Act, which appears in its present form at sections 19-4-101 to -130, 8B C.R.S. (1995 Supp.). The State petitioned for declaratory and other relief, including a determination that S.O.V. is the father of M.C. and is therefore obligated for medical expenses and support payments for the benefit of the child. M.C. was referred to as the “petitioner” in the initial pleading, but no guardian ad litem or other fiduciary was appointed to represent her. The case was tried to a jury, which determined that S.O.V. is not M.C.’s father and so has no duty to provide financial support for the child. This determination was made notwithstanding evidence of blood test results indicating a 99.9 percent probability that S.O.V. is M.C.’s father.
The State moved for a judgment notwithstanding the verdict or in the alternative for a new trial, and the trial court granted the motion for judgment notwithstanding the verdict. On appeal, the Colorado Court of Appeals reversed, holding that there was sufficient evidence to sustain the jury verdict, and remanded the case for consideration of the State’s alternative motion for a new trial, which was based on alleged jury misconduct. People in Interest of M.C., 844 P.2d 1313 (Colo.App.1992).
The trial court held a hearing on April 1, 1993, and denied the new trial motion on the jury misconduct ground but took under advisement an assertion newly presented by the State in conjunction with the motion for new trial that the proceedings were jurisdie-tionally defective because the child had not been represented by a guardian ad litem.
Thereafter, on April 5, 1993, the trial court in a written order addressed the State’s request for a new trial based on the alleged jurisdictional defect resulting from failure to join the child as a party. It concluded that the child was not properly represented and thus was not a party to the action. The court noted, on the one hand, that although the State’s contention that the court should therefore grant a new trial because it did not have subject matter jurisdiction “may be technically appropriate,” such an argument by the State “is not supported by equity” because the State had previously claimed to represent the child. On the other hand, the court noted that it must balance against such inequity the importance of having “a correct determination of paternity because the present verdict leaves the child fatherless” and because the child, not having been properly represented, would have a continuing right “to pursue a collateral attack on the judgment of non-paternity.” Because such lack of finality was not in the best interests of the child, the parents, or the State, the court for the first time ordered appointment of a guardian ad litem for M.C. “to investigate the circumstances presented by the present status of this litigation and to determine whether the Child’s interests warrant a collateral attack on the judgment represented by the jury’s verdict of non-paternity.” The court’s order contained no ruling on the request for a new trial but stated that upon [358]*358receipt of the guardian ad litem’s report it would “schedule a conference with all counsel, including [the guardian ad litem] to determine how to proceed.”1
The guardian ad litem conducted an investigation and filed a report on June 3, 1993, stating “that it is in [M.C.’s] best interest to exercise her right to collaterally attack the jury verdict of non-paternity.” After considering the guardian’s report, the trial court set the matter for a status conference with counsel “to determine the procedures to be followed to implement the [guardian ad li-tem’s] recommendation, and to determine if any other disposition short of a new trial is viable.” At the status conference on August 5, 1993, the trial court directed the attorney for the child to file a petition on behalf of the child “either in this action or in a new case as his research dictates.” The child’s attorney then filed a petition for declaration of paternity and a motion to intervene on behalf of M.C., both bearing the same case number as the action that resulted in the jury verdict. On August 17, 1993, the trial court issued a written order that M.C. “shall and hereby is permitted to intervene in the within action.” S.O.V. then moved “to dismiss this action based on the doctrines of res judicata and collateral estoppel,” relying on the jury verdict and stating that the verdict “has been upheld after a direct appeal and is a final judgment.” The trial court granted the motion to dismiss, ruling that although the child was not a party to the action preceding the jury verdict, she was in privity with the State, which was acting under the authorization of section 19-4-107, 8B C.R.S. (1995 Supp.), and “through its common law duty under the doctrine of Parens Patriae.” The court held that M.C. therefore was barred by principles of res judicata and collateral estop-pel from challenging the jury determination that S.O.V. is not her father.
On appeal, the court of appeals reversed. People in Interest of M.C., 895 P.2d 1098, 1102 (Colo.App.1994). That court held that M.C. was not in privity with the State because the child had interests in the paternity determination of a “different and broader nature” than those of the State. Id. As a result, the doctrines of res judicata and collateral estoppel did not apply. Id. We granted certiorari to decide whether M.C. is bound by the jury verdict of non-paternity and is thereby precluded from further efforts to obtain a judicial determination that S.O.V. is her father.2
II.
S.O.V. asserts that the doctrines of res judicata and collateral estoppel bar M.C.’s relitigation of the issue of whether S.O.V. is M.C.’s father.3 We disagree.
Res judicata, or claim preclusion, “operates as a bar to a second action on the same claim as one litigated in a prior proceeding when there is a final judgment, identity of subject matter, claims for relief, and parties to the action.” City & County of Denver v. Block 173, 814 P.2d 824, 830 (Colo.1991). Res judicata binds parties to the action and persons in privity with such parties. Denver v. Consolidated Ditches Co., 807 P.2d 23, 32 (Colo.1991); People v. Hearty, 644 P.2d 302, 312 (Colo.1982). The doctrine not only bars litigation of issues actually decided but also any issues that should have been raised in the first proceeding but were not. City & County of Denver v. Block 173, 814 P.2d at 830; Pomeroy v. Waitkus, 183 Colo. 344, 350, 517 P.2d 396, 399 (1973). The [359]*359doctrine of collateral estoppel is broader than the doctrine of res judicata because it applies to claims for relief different from those litigated in the first action, but narrower in that it applies only to issues actually litigated. City & County of Denver v. Block 173, 814 P.2d at 824; Industrial Com’n v. Moffat Cty. Sch. D. RE No. 1, 732 P.2d 616, 620 (Colo.1987). Collateral estoppel, or issue preclusion, bars relitigation of an issue if: (1) the issue is identical to that actually adjudicated in a prior proceeding; (2) the party against whom estoppel is asserted is a party or in privity with a party in the prior proceeding; (3) there was a final judgment on the merits; and (4) the party against whom estoppel is asserted had a full and fair opportunity to litigate the issues in the prior proceeding. City & County of Denver v. Block 173, 814 P.2d at 831; Industrial Com’n v. Moffat Cty. Sch. D. RE No. 1, 732 P.2d at 619-20.
There was no final judgment embodying the jury verdict of non-paternity when the trial court applied the doctrines of res judica-ta and collateral estoppel to bar M.C.’s claim. Furthermore, M.C. was not a party or in privity with the State in the proceedings that eventuated in the jury verdict. For each of these independently sufficient reasons, the doctrines of res judicata and collateral estop-pel do not apply.
A.
A final judgment is an essential prerequisite for the applicability of both res judicata and collateral estoppel. The judgment that had been entered on the jury verdict was reversed on appeal and the case was remanded for a ruling on the State’s motion for a new trial. People in Interest of M.C., 844 P.2d 1313. At the time the trial court applied res judicata and collateral es-toppel to bar M.C.’s petition for a declaration of paternity, the case had not been concluded. There remained pending the issue of the action to be taken by the court as a result of the failure to appoint a guardian ad litem for M.C. in the proceedings that led to the jury verdict. That issue was raised by the State as a jurisdictional defect after remand of the case by the court of appeals and was taken under advisement by the court in conjunction with the denial of the State’s motion for a new trial on jury misconduct grounds. Thus, the court had not entered final judgment but had before it an unresolved application for a new trial based on the failure to appoint a guardian for M.C. Lack of finality is reinforced by the fact that the court in orders entered in the same case subsequent to its appointment of a guardian ad litem on April 5, 1993, continued to treat the case as open. Moreover, M.C.’s petition for declaration of paternity and motion to intervene were filed in that same case, a prior verdict in which was relied upon to establish res judicata and collateral estoppel. The principles of res judicata and collateral estoppel have no applicability to prior rulings in the same pending case. See Kuhn v. State Dept. of Revenue, 897 P.2d 792, 795 (Colo.1995) (“res judicata is not applicable to an earlier decision in the same lawsuit”).4 S.O.Y. asks us to give res judicata and collateral estoppel effect to earlier determinations in the same action which, prior to the granting of S.O.V.’s motion to dismiss, had not yet resulted in a final judgment. For reasons previously discussed, neither of these doctrines is applicable in such circumstances.
B.
Res judicata and collateral estoppel are also inapplicable because M.C. was nei[360]*360ther a party nor in privity with a party to the proceedings that led up to the jury verdict of non-paternity.
M.C. was not a party to the original paternity action because section 13-22-101, 6A C.R.S. (1987), requires that a person be eighteen years of age or older to be competent to sue unless a guardian ad litem is appointed to represent that person. Merely naming an individual as a party in a petition or complaint does not make the person a party to the action. People in Interest of E.E.A. v. J.M., 854 P.2d 1346, 1348 (Colo.App.1992). M.C. could not have been a party to the original action because M.C. was not eighteen years of age and was not represented by a guardian ad litem. Ch. 138, sec. 1, § 19-4-110, 1987 Colo. Sess. Laws 695, 796 (child shall be made a party to an action to determine paternity; neither child’s mother nor father may represent child; and court may appoint guardian ad litem). Accordingly, M.C. was not a party to the original proceedings because she was not competent to sue in the absence of the appointment of a guardian ad litem.
M.C. was also not in privity with a party. In the absence of such privity, a non-party such as M.C. cannot be bound by the result of a prior proceeding under either res judicata or collateral estoppel principles. Denver v. Consolidated Ditches Co., 807 P.2d 23, 32 (Colo.1991) (res judicata, when applicable, bars parties and privies); City & County of Denver v. Block 173, 814 P.2d 824, 831 (Colo.1991) (party against whom collateral estoppel is to be applied must be a party or in privity with a party in the prior proceeding).
Privity between a party and a non-party requires both a “substantial identity of interests” and a “working or functional relationship ... in which the interests of the non-party are presented and protected by the party in the litigation.” Public Serv. Co. v. Osmose Wood Preserving, Inc., 813 P.2d 785, 787 (Colo.App.1991).
S.O.V. asserts that M.C. was in privity with the State in the proceedings that resulted in the jury verdict of non-paternity. That position is inconsistent with the provisions of the Uniform Parentage Act (the Act) in place during the relevant time.5 The Act permits the State to bring an action to declare the existence of the father and child relationship under the circumstances present here. § 19-4-107.6 The Act is carefully structured to assure that all interested persons are made parties to the action or given notice so that their interests can be protected.7 A judgment obtained in compliance [361]*361with the Act “determining the existence or nonexistence of the parent and child relationship is determinative for all purposes.” § 19-4-116. The Act specifically provides that the child “shall be made a party” to an action for determination of paternity. § 19-4AL10. Under such a provision the child is an indispensable party. People in Interest of E.E.A v. J.M., 864 P.2d 1346, 1347-48 (Colo.App.1992); M.R.D., by P.D. v. F.M., 805 P.2d 1200, 1203 (Colo.App.1991). In order to make the child a party, it is necessary that the child be represented by a guardian ad litem or other fiduciary. Interest of E.E.A, 854 P.2d at 1347-48; M.R.D., 805 P.2d at 1203.8 The legislature did not contemplate that the child would rely on the State, acting in a parens patriae capacity, to present and protect his or her interests. Cf. E.E.A, 854 P.2d at 1348 (where statute required child be made a party in paternity action, this may not be accomplished by suit brought by mother as “next friend”); Public Serv. Co., 813 P.2d at 787 (privity requires that the interests of a non-party be presented and protected by a party in the litigation). The importance of full party status for the child is underscored by the fact that a judgment concerning paternity “is determinative for all purposes.” § 19-4-116. Under this statutory scheme, we hold that M.C. was not in privity with the State.9 To hold otherwise would permit evasion of the specific statutory requirement that the child be made a party and would undermine the child’s rights so carefully protected under the Act.
The Act reflects the reality that a child’s interests in a paternity proceeding are of a different and broader nature than those of the State. The State’s primary interest is to obtain child support to assure that the child is not dependent on public resources. See, e.g., Mills v. Habluetzel, 456 U.S. 91, 103, 102 S.Ct. 1549, 1564-57, 71 L.Ed.2d 770 (1982) (O’Connor, J., concurring and joined by four other justices); Spada v. Pauley, 149 Mich.App. 196, 385 N.W.2d 746, 750 (1986); Johnson v. Hunter, 447 N.W.2d 871, 875 (Minn.1989); Settle v. Beasley, 309 N.C. 616, 308 S.E.2d 288, 290 (1983). The child also has a strong interest in financial support during minority. E.g., Bill v. Gossett, 132 Ariz. 518, 647 P.2d 649, 654 (Ct.App.1982); Johnson, 447 N.W.2d at 875. The child’s interests, however, extend beyond support to encompass other matters including the right to inheritance, information about family medical [362]*362history, and intangible interests such as emotional and psychological benefits associated with an accurate establishment of paternity. E.g., Spada, 385 N.W.2d at 750 & n. 6; Johnson, 447 N.W.2d at 875; Settle, 308 S.E.2d at 290-91; State ex rel. DHS v. Benjamin, 183 W.Va. 220, 395 S.E.2d 220, 224 (1990). By mandating that a child be made a party to any proceeding under the Act to determine his or her paternity, the legislature properly recognized the difference between the interests of a child and those of his mother,10 the purported father, and the State in such a proceeding.11
Based on the foregoing analysis, M.C. was neither a party nor in privity with a party in the proceedings that resulted in the jury verdict. Thus, an element essential to invoke the doctrines of res judicata and collateral estoppel is absent. For this independently sufficient reason, M.C. is not bound by the jury verdict of non-paternity.
III.
For the foregoing reasons we affirm the judgment of the Colorado Court of Appeals, which reverses the dismissal of M.C.’s paternity petition and remands the case for further proceedings.
VOLLACK, C.J., dissents, and SCOTT and KOURLIS, JJ., join in the dissent.
Appendix A to S.O.V. v. People
No. 94SC727
The following constitute the final paragraphs of the trial court’s order of April 5, 1993:
8. The Court concludes that the People (i.e. the Child Support Enforcement Unit for Delta County) did not have authority to represent the child in this action. As a result, the Court concludes that the Child was not properly represented in this action, and thus concludes that she was not properly a party in this case.
9. | As a proponent of this conclusion the People urge the Court to act sua sponte in ordering a new trial because it did not have subject matter jurisdiction, and as a result to authorize a new trial. While this argument may be technically appropriate, the equity of the result has to be questioned. The People initially claimed to represent the child, but having failed to prevail on the merits of the paternity issue, they now seek to nullify the non-paternity verdict by claiming that they could not legally represent the Child. This argument is not supported by equity, and should not be accepted by the Court to the extent it works to the benefit of the People.
10., On the other hand, the Court must balance against such inequity the importance [363]*363of having a correct determination of paternity because the present verdict leaves the child fatherless, there being no other man identified as a possible father.
11. Also, because the child was not properly represented in this case, her right to pursue a collateral attack on the judgment of non-paternity will be available for several years. This situation leaves the non-paternity judgment in doubt, and its lack of finality is not in the best interests of the Child, the Respondents, nor the People.
12. Therefore, the Court concludes that it should appoint a guardian ad litem for the subject Child to investigate the circumstances presented by the present status of this litigation and to determine whether the Child’s interests warrant a collateral attack on the judgment represented by the jury’s verdict of non-paternity.
IT IS THE COURT’S ORDER, That Barbara Remmenga is hereby appointed as guardian ad litem to represent the Child in this action to determine whether the Child’s right to collaterally attack the judgment of non-paternity in this case should be exercised or not.
IT IS FURTHER ORDERED, That Ms. Remmenga shall investigate this litigation in light of the best interests of the Child. In this regard, Ms. Remmenga shall have full access to the Court’s file and the transcripts of the record which were used on appeal. Counsel of record, Mr. Kolman for the People and Mr. Johnston for the Respondent, [S.O.V.], shall cooperate with Ms. Remmenga in providing information which she needs to make the investigation and the decisions required of her by this Order. Ms. Remmenga should include in her consideration an analysis of whether or not another trial would likely result in a verdict more favorable to the Child’s interests.
IT IS FURTHER ORDERED, That not later than June 4,1993, Ms. Remmenga shall file a written report with the Court concerning her decisions and recommendations as to whether or not the Child should exercise of her right to collaterally attack the non-paternity judgment in this action. Upon receipt of said report, the Court will schedule a conference with all counsel, including Ms. Remmen-ga to determine how to proceed.