Owen Wilson Jedediah Smith (uncredited)
Robin Williams Theodore Roosevelt
Brad Garrett Easter Island Head (voice)
Dick Van Dyke Cecil
Carla Gugino Rebecca
Bill Cobbs Reginald
Ricky Gervais Dr. McPhee
Rami Malek Ahkmenrah
Paul Rudd Don
Anne Meara Debbie
Ben Stiller Larry Daley
Jake Cherry Nick Daley
Robert Ben Garant Screenplay
Brian Smrz Second Unit Director
Thomas Lennon Screenplay
Victoria Down Makeup Artist
Tim Gomillion Sound Recordist
Terry Wilson Supervising Music Editor
Steve Coogan Octavius
Kim Raver Erica Daley
Matthew Harrison Neanderthal #3
Karen Patch Wardrobe Designer
Diane Durant Script Supervisor
Charleen Richards-Steeves ADR Mixer
Chris Columbus Producer
Shawn Levy Director, Producer
Jody Racicot Neanderthal #4
Ilene Starger Casting
Gary Sievers Viking Warrior (uncredited)
Larry Blanford Second Unit Director of Photography
Don Zimmerman Editor
Mickey Rooney Gus
Jason McKinnon Irish Worker
Teagle F. Bougere Teacher (Mike)
Sherry Linder-Gygli Hairstylist
David Lucarelli ADR Recordist
Alan Silvestri Original Music Composer
Pierfrancesco Favino Christopher Columbus
Patrick Gallagher Attila the Hun
Phil Proctor Moose (uncredited)
John A. Larsen Supervising Sound Editor
Guillermo Navarro Director of Photography
Crystal the Monkey Dexter
Jim Rygiel Visual Effects Supervisor
Chad Sayn Stunt Double
Lauro David Chartrand-DelValle Stunts
Matthew Walker Politician
Rhonda Taylor Third Assistant Director
Matt Patterson Sound Recordist
Josh McLaglen Co-Producer, First Assistant Director
Loyd Bateman Stunts
Bridget McGuire Art Direction
Peter Bodnarus Set Designer
Darryl Quon Hun #2
Zoe E. Rotter Casting Associate
Clint Carleton Stunts
Pat Kiernan TV News Anchor
Mike Mitchell Stunt Double
Craig Henighan Sound Designer, Supervising Sound Editor
Renée April Costume Design
Tex Kadonaga Modeling
Gary Burritt Negative Cutter
Thomas M. Hammel Executive Producer, Unit Production Manager
Dan Rizzuto Neanderthal #2
Dan O'Connell Foley Artist
Rob 'Sluggo' Boyce Stunts
Chris Beach Set Designer
Charlie Murphy Taxi Driver
J.J. Makaro Stunt Coordinator
Claude Paré Production Design
Blaise Corrigan Stunt Driver
James Ashwill Foley Mixer