Leslie Mann Patty Peterson (voice)
Steve Bartek Orchestrator
Stephen Tobolowsky Principal Purdy (voice)
Stanley Tucci Leonardo da Vinci (voice)
Karan Brar Mason (voice)
Thomas Lennon Italian Peasant #2 (voice)
Allison Janney Ms. Grunion (voice)
Patrick Warburton Agamemnon (voice)
Beth Hofer Executive In Charge Of Production
Bonnie Lemon Executive In Charge Of Production
James Beshears Executive In Charge Of Post Production
Edie Mirman Additional Voices (voice)
Mel Brooks Albert Einstein (voice)
Lake Bell Mona Lisa (voice)
Jason Clark Executive Producer
Cullen McCarthy Kid (voice)
Craig Kellman Character Designer
Roger Linley Musician
Stephen Colbert Paul Peterson (voice)
Ariel Winter Penny Peterson (voice)
Pat Musick Teacher (voice)
Nicholas Guest French Peasant (voice)
Dennis Haysbert Judge (voice)
Hope Levy Additional Voices (voice)
Jadon Sand Additional Voices (voice)
Joyce Arrastia Thanks
Richard King Sound Designer, Supervising Sound Editor
Michelle Ruff Additional Voices (voice)
Dennis Sands Scoring Mixer
Nicholas Bucknall Musician
Rachel Bolt Musician
Stephen Apostolina Additional Voices (voice)
Danny Elfman Original Music Composer
Andy Nelson Sound Re-Recording Mixer
Alan Shearman Additional Voices (voice)
Nico Sanghrajka Creature Technical Director
Eva Bella Additional Voices (voice)
Edgardo Simone Orchestrator
Max Charles Sherman (voice)
Lance Fite Animation
Luisa Leschin Additional Voices (voice)
Ty Burrell Mr. Peabody (voice)
Zach Callison King Tut (voice)
Steve Valentine Ay (voice)
Rosemary Alexander Additional Voices (voice)
Michael W. Mitchell Sound Effects Editor
Lynnanne Zager Additional Voices (voice)
Christi Soper Hilt Casting
Scott Menville Additional Voices (voice)
John Roesch Foley
Steve Alterman Additional Voices (voice)
Jess Harnell Abraham Lincoln / George Washington / Bill Clinton / Isaac Newton / New York City Cop (voice)
Ava Acres Additional Voices (voice)
Jasper Johannes Andrews Baby Sherman (voice)
Chris Bacon Additional Music
Nathan Schauf First Assistant Editor
David Slonaker Orchestrator
Rif Hutton Additional Voices (voice)
Mariko Hoshi Animation
John Ashton Thomas Additional Music, Orchestrator
Tom McGrath Odysseus (voice)
Tripp Hudson Executive In Charge Of Production
Walt Dohrn French Peasant / Taxi Driver / Spartacus (voice)
Joe Moshier Character Designer
David Zyler Additional Voices (voice)
Robert Ben Garant Egyptian Spectator / Italian Peasant #1 (voice), Additional Dialogue
Jacqueline Pinol Additional Voices (voice)
Michael Andrews Editor
Joshua Rush Carl (voice)
Blake Bertrand Additional Voices (voice)
Mark Berrow Musician
Newell Alexander Additional Voices (voice)