Ty Burrell Mr. Peabody (voice) Max Charles Sherman (voice) Ariel Winter Penny Peterson (voice) Allison Janney Ms. Grunion (voice) Stephen Colbert Paul Peterson (voice) Stephen Tobolowsky Principal Purdy (voice) Stanley Tucci Leonardo da Vinci (voice) Karan Brar Mason (voice) Joshua Rush Carl (voice) Leslie Mann Patty Peterson (voice) Lake Bell Mona Lisa (voice) Dennis Haysbert Judge (voice) Zach Callison King Tut (voice) Steve Valentine Ay (voice) Leila Birch WABAC Machine (voice) Patrick Warburton Agamemnon (voice) Tom McGrath Odysseus (voice) Mel Brooks Albert Einstein (voice) Cullen McCarthy Kid (voice) Walt Dohrn French Peasant / Taxi Driver / Spartacus (voice) Thomas Lennon Italian Peasant #2 (voice) Al Rodrigo Ajax (voice) Jess Harnell Abraham Lincoln / George Washington / Bill Clinton / Isaac Newton / New York City Cop (voice) Ava Acres Additional Voices (voice) Stephen Apostolina Additional Voices (voice) Eva Bella Additional Voices (voice) David Cowgill Additional Voices (voice) Donald Fullilove Additional Voices (voice) Scott Menville Additional Voices (voice) Edie Mirman Additional Voices (voice)