Biography: Maxwell Henry Wolf Burkholder (born November 1, 1997) is an American actor. He is most notable for his role as Max Braverman in the comedic television drama on NBC, Parenthood. Prior to that, he became known as a voice actor for his roles as Chomper in The Land Before Time, Roo on My Friends Tigger & Pooh and World in the television movie of Foster's Home for Imaginary Friends, Destination: Imagination. In 2013, Burkholder appeared in the film The Purge. He is currently a member of the comedy account on Instagram, Max 'n' the Jakey Boys.