Dr. McPhee

Ricky Gervais

Larry Daley

Ben Stiller

Rebecca

Carla Gugino

Theodore Roosevelt

Robin Williams

Cecil Fredricks

Dick Van Dyke

Gus

Mickey Rooney

Nick Daley

Jake Cherry

Erica Daley

Kim Raver

Reginald

Bill Cobbs

Ahkmenrah

Rami Malek

Sacajawea

Mizuo Peck

Jedidiah

Owen Wilson

Christopher Columbus

Pierfrancesco Favino

Attila the Hun

Patrick Gallagher

Neanderthal No. 1

Kerry van der Griend

Neanderthal No. 2

Dan Rizzuto

Don

Paul Rudd

Neanderthal No. 3

Matthew Harrison

Taxi Driver

Charlie Murphy

Lewis

Martin Christopher

Clark

Martin Sims

Octavius

Steve Coogan

Hun No. 1

Randy Lee

Hun No. 2

Darryl Quon

Miguel

Lou Torres

Hun No. 3

Gerald Wong

Hun No. 4

Chih-Ping Cheng Paul

Debbie

Anne Meara

Teacher (Mike)

Teagle F. Bougere

Neanderthal #4

Jody Racicot

TV News Anchor

Pat Kiernan

Friend No. 1

Nico McEown

Friend No. 2

Meshach Peters

Politician

Matthew Walker

Irish Worker

Jason McKinnon

Chinese Rail Worker

Jonathan Lee

Viking

Jason Vaisvila

Hun #4

Paul Chih-Ping Cheng

Viking

Cade Wagar

Chinese Terra Cotta Soldier

Cory Martin

Blind Driver

Jason Glass

Dexter

Crystal the Monkey

Pretty Tourist Girl

Che Landon

Chinese Rail Worker

Jono Lee

Easter Island Head (voice)

Brad Garrett

Larry Riding Double

Brent Woolsey

Stunt Driver

Blaise Corrigan

Teddy Stand-In

Adam Bryant*

Kimberly Bailey

Gil Birmingham

Alexander J. Castillo

Alex Cong

Jessie Flower

Pedro U. Garcia

Aaron Hendry

Daamen Krall

Tommy Lamey

Zahn McClarnon

Roberto Medina

Arlin Miller

Khanya Mkhize

Vivianne Nacif

Maggie Palomo

Michael Ralph

Noreen Reardon

Craig Ricci Shaynak

Mark Sussman

Regina Taufen

Travis Quentin Young

Ruth Zalduondo

Director

Michael Barnathan

Director

Ira Shuman

Director

Thomas M. Hammel

Director

Shawn Levy

Director

Chris Columbus