Maxwell Henry Wolf "Max" Burkholder (born November 1, 1997) is an American 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". He also provides many miscellaneous child voices for Family Guy.
Max provides the voice of Justin Bieber in "The Men in Me", "Truepopperking33" in "All You Can Eat" and has other voice credits in "American Prankster".