Christa Brittany Allen (born November 11, 1991) is an American actress. She is known for playing the younger version of Jennifer Garner's character in both 13 Going on 30 (2004) and Ghosts of Girlfriends Past (2009). In 2006, she starred as the titular character in the CBS children's television series Cake. She played socialite Charlotte Grayson on the ABC drama television series Revenge from 2011 to 2015.
Early and personal life Allen was born in Wildomar, California. She is the youngest of nine siblings, with eight older brothers. She once spent a summer in a circus.
In August 2025, Allen posted on TikTok that she had escaped a relationship with a wealthy cult leader.
Career Allen made a brief appearance on The Man Show, and appeared in several student films and commercials. She played the younger version of Jennifer Garner's character in the comedy film, 13 Going on 30 (2004), when she was 11 years old. She again played Garner's younger version in Ghosts of Girlfriends Past (2009). She also had roles in numerous films, including A Merry Little Christmas (2006), Youth in Revolt (2009), One Wish (2010), One Kine Day (2011) and Detention of the Dead (2012). Allen starred as the titular character in the CBS children's television series Cake in 2006.
In 2011, Allen landed one of the main roles as socialite Charlotte Grayson in ABC's drama series Revenge. Allen's last credited appearance as a series regular was the sixth episode of the fourth season, but later returned for the series finale as a guest star. She had guest roles in television shows such as Medium, Cory in the House, The Suite Life on Deck, Grey's Anatomy, ER, CSI: Crime Scene Investigation, Wizards of Waverly Place and Cold Case. In 2015, she had a recurring role as Robyn on the ABC Family sitcom Baby Daddy. In May 2021, she wrote an essay about turning 30 years old for Yahoo!'s website.
Allen is part of a musical act called Pour Vous, which means “for you” in French, with Johnny What. In April 2018, the duo's first single called "Scorpio" was released.
Filmography + Film roles Year Title Role Notes200413 Going on 30Young Jenna Rink2006Holly2009Ghosts of Girlfriends PastTeenage Jenny2009Jonas Brothers: The 3D Concert ExperienceFeatured Fan2009Youth in RevoltKaren2010One WishMolly Wylie2011One Kine DayAlea2012Detention of the DeadJanet2017The ValleyAlicia2017One of UsMelanie/Mary
+ Television roles Year Title Role Notes2006MediumMaura WalkerEpisode: "Blood Relation"2006CakeCakeLead role2007Cory in the HouseCheyenneEpisode: "The Kung Fu Kats Kid"2008Violet BergEpisode: "The Kidney of the Sea"2008Grey's AnatomyHolly AndersonEpisode: "All by Myself"2009ERJody NugentEpisode: "Love Is a Battlefield"2009CSI: Crime Scene InvestigationMatty MooreEpisode: "Miscarriage of Justice"2009Chasing a DreamNikol SchrunkTelevision film2009Wizards of Waverly PlaceDaphneEpisode: "Family Game Night"2010Cold CaseAnnabelle BennetEpisode: "Free Love"2011Deadly Sibling RivalryFionaTelevision film2011–2015RevengeCharlotte GraysonMain role (seasons 1–4)2015Baby DaddyRobynRecurring role, 4 episodes2016Hopeless, RomanticLizTelevision film2017Family of LiesEmily Television film2018Dangerous SeductionPosy PinkertonTelevision film; also known as The Queen of Sin2018Code BlackAmberEpisode: "Only Human"2019When Vows BreakEllaTelevision film2019Pregnant and DeadlyAmberTelevision film2019Grand HotelJavi's 2nd GirlEpisode: Pilot2021Christmas for KeepsAveryTelevision film
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