Maxwell Henry Wolf "Max" Burkholder (born November 1, 1997) is an American child actor most notable for his role Max Braverman, who has Asperger Syndrome, in the NBC series Parenthood. Prior to that, he became known as a voice actor, among his many roles were those of Chomper in The Land Before Time television series based on film series of the same name. He also provides the voice of Roo on My Friends Tigger & Pooh, and played "World", the imaginary friend inside a toybox in the Foster's Home for Imaginary Friends movie "Destination: Imagination".
Max has provided assorted voices for Family Guy including young Patrick Pewterschmidt, Will Robinson, Calvin of Calvin and Hobbes and Scotty Jennings. Max's brother James has also provided some children's voices when needed.