A young boy and his dog, who happens to have a genius-level IQ, spring into action when their time-machine is stolen and moments in history begin to be changed.
Directed by
Rob Minkoff
Stanley Tucci
Leonardo da Vinci (voice)
Allison Janney
Ms. Grunion (voice)
Karan Brar
Mason (voice)
Patrick Warburton
Agamemnon (voice)
Ariel Winter
Penny Peterson (voice)
Leslie Mann
Patty Peterson (voice)
Lake Bell
Mona Lisa (voice)
Dennis Haysbert
Judge (voice)
Scott Menville
Additional Voices (voice)
Mel Brooks
Albert Einstein (voice)
Stephen Colbert
Paul Peterson (voice)
Zach Callison
King Tut (voice)
Stephen Tobolowsky
Principal Purdy (voice)
Ty Burrell
Mr. Peabody (voice)
Thomas Lennon
Italian Peasant #2 (voice)
Max Charles
Sherman (voice)
Steve Valentine
Ay (voice)
Jess Harnell
Abraham Lincoln / George Washington / Bill Clinton / Isaac Newton / New York City Cop (voice)