Today, Christina Robinson turns 16! She was born on August 2, 1997 and she is the twin sister of actress Courtney Robinson. She has received two Young Artists Awards for Best Performance in a TV Series - Recurring Young Actress in both 2008 and 2009. On Dexter she plays the role of Astor Bennett (Rita's daughter). She returned in the seventh season, and she will likely be back in the final episodes. Happy b-day Christina!