Popularly known for her debut movie where she played the young version of Jennifer Garner's role in 13 Going on 30, Christa B. Allen is an American film and television actress. Her popular films are Ghosts of Girlfriends Past (2009), One Wish (2010), and Detention of the Dead (2012). Her television career was also impressive with shows like Cake (2006), and Revenge (2011-15) to her credit. She had guest roles in popular series such as Grey's Anatomy (2008) and CSI: Crime Scene Investigation (2009). Her 2018 projects include The Valley.