Yes, 13 Going on 30 Star Christa B. Allen Is Officially 30

Nearly two decades after Jenna Rink got us excited about turning 30, Christa B. Allen—the actress who starred as the younger version of Jennifer Garner—has finally reached the special age herself.
E! celebrates the 15th anniversary of 13 Going on 30 with throwback interviews from Jennifer Garner, Mark Ruffalo and more. Watch!

Jenna Rink Is Officially 30! 13 Going on 30 Star Christa B. Allen Celebrates Milestone Birthday - IMDb

Young Jenna 13 Going On 30 Turned 30

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Here Are 14 Side-By-Sides Of The Teens From 13 Going On 30 Then Vs. Now

Here Are 14 Side-By-Sides Of The Teens From 13 Going On 30 Then Vs. Now

Yes, 13 Going on 30 Star Christa B. Allen Is Officially 30

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Yes, 13 Going on 30 Star Christa B. Allen Is Officially 30

13 Going on 30: Where the Cast is Today

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13 Going on 30' Star Christa B. Allen Turns 30 -- and Jennifer Garner Responds

13 Going on 30' Star Christa B. Allen Turns 30 -- and Jennifer Garner Responds