Thirty, flirty and thriving! Jennifer Garner and Mark Ruffalo have remained firmly in the spotlight since starring in the 2004 romantic comedy 13 Going on 30, but even the most diehard fans might need an update on other members of the cast.

The Alias alum played Jenna Rink, a 13-year-old girl who traveled to the future to see what her life would be like when she was 30. Garner starred alongside Ruffalo (Matt Flamhaff), Judy Greer (Lucy Wyman), Andy Serkis (Richard Kneeland), Samuel Ball (Alex Carlson), Christa B. Allen (Young Jenna) and Sean Marquette (Young Matt) in the beloved chick flick.

Despite the ongoing popularity of the film, Garner shot down the idea of a sequel in April 2019. “What, like 15 Going on 50?” she joked during an appearance on Good Morning America. “Let’s simmer down! Leave well enough alone!”

The actress was, however, game to reflect on her memories from shooting the movie. “Judy Greer, working with Judy,” she said of her favorite part of working on the project. “We had so much fun together. She was my frenemy, and we’re still really good friends.”

Serkis agreed with Garner’s assessment of a reboot of sorts. “No! Definitely not,” he exclusively told Us Weekly in November 2018. “Once is plenty. It was really fun to work on, but …”

The actor has nothing but fondness for his experience, though. “I actually loved the film,” he continued. “I just have to kind of, sort of hold my head every time people say, ‘Can you do the ‘Thriller’ dance?’ I have to kind of go, ‘Oh, my God.’ But Jennifer Garner and Mark Ruffalo’s relationship in that is absolutely gorgeous. I love that film.”

In recent years, viewers noticed even more famous faces in the movie, thanks to bit roles as Six Chicks for now-stars Brie Larson and Ashley Benson. “Oh yeah, that’s pretty good!” the Captain Marvel actress exclusively told Us in December 2015 when asked about her part. “Photos of that have been resurfacing recently. That’s hilarious.”

Ruffalo, meanwhile, was not aware that his Avengers: Endgame costar Larson was in 13 Going on 30 until someone pointed it out to him. “She was a mean girl! Oh, my God, that’s amazing. Wow, I didn’t know that,” he told Entertainment Tonight in April 2019. “We didn’t work together [on that movie].”

Scroll through the gallery below to see what the cast of 13 Going on 30 is up to today!


Jennifer Garner (Jenna Rink)
The actress went on to star in Elektra, Catch and Release, Ghosts of Girlfriends Past, Dallas Buyers Club, Love, Simon, Peppermint, Camping and more high-profile projects. The Golden Globe winner is also an activist and the cofounder of Once Upon a Farm.  On the personal front, Garner married Ben Affleck in June 2005. The pair split in June 2015 and finalized their divorce in October 2018. They share daughters Violet and Seraphina and son Samuel. She has been dating businessman John Miller on and off since 2018. Barry Wetcher/Columbia Tri Star/Kobal/Shutterstock; Jordan Strauss/Invision/AP/Shutterstock
Mark Ruffalo (Matt Flamhaff)
Ruffalo’s status has only grown with roles in The Avengers, The Kids Are All Right, Now You See Me, Foxcatcher, The Normal Heart, Spotlight and I Know This Much Is True. He also serves as a political activist.  The Emmy winner has been married to Sunrise Coigney since June 2000. The couple are parents of son Keen, daughter Bella and daughter Odette. Columbia Tri Star/Kobal/Shutterstock; Richard Young/Shutterstock
Judy Greer (Lucy Wyman)
Greer has kept busy with projects such as 27 Dresses, Ant-Man, Californication, Two and a Half Men, Jurassic World, Married, Casual, Arrested Development, Kidding and Halloween.   The actress wed producer Dean Johnsen in December 2011. Tracy Bennett/Columbia Tri Star/Kobal/Shutterstock; Ryan Miller/Shutterstock
Andy Serkis (Richard Kneeland)
The actor has starred in Black Panther, King Kong, Rise of the Planet of the Apes, The Hobbit: An Unexpected Journey, Star Wars: Episode VII – The Force Awakens, Mowgli: Legend of the Jungle, Long Shot and A Christmas Carol. He is well known for his computer-generated characters, including Gollum from The Lord of the Rings, and is also a director.  Serkis tied the knot with actress Lorraine Ashbourne in July 2002. They share three children: Ruby, Sonny and Louis. Tracy Bennett/Columbia Tri Star/Kobal/Shutterstock; Richard Young/Shutterstock
Samuel Ball (Alex Carlson)
Ball has made appearances on TV shows such as Perry Mason, The Event and CSI: Miami. E Charbonneau/Bei/Shutterstock
Christa B. Allen (Young Jenna)
Allen forged her own path in Hollywood with roles in Ghosts of Girlfriends Past (once again playing a young Garner), Revenge, Baby Daddy, Cake and Grey’s Anatomy. The actress made headlines in October 2020 when she recreated one of Garner's scenes from 13 Going on 30 on TikTok. Columbia Pictures; MediaPunch/Shutterstock
Sean Marquette (Young Matt)
The actor has since starred on The Goldbergs, Schooled, The 4400, Ghost Whisperer, Bones and NCIS: Los Angeles. Columbia Tri Star/Kobal/Shutterstock; Berenice Bautista/AP/Shutterstock