Jonah Bobo (born January 24, 1997) is an American musician and former child actor. He is best known for his roles as Danny Budwing in the 2005 film Zathura: A Space Adventure, Robbie Weaver in the 2011 film Crazy, Stupid, Love, and the voice of Austin the Kangaroo on Nickelodeon's animated television series The Backyardigans.