George Clooney Frank Walker
Kathryn Hahn Ursula
Judy Greer Jenny Newton
Lochlyn Munro Uncle Anthony (uncredited)
Hugh Laurie David Nix
Keegan-Michael Key Hugo
Britt Robertson Casey Newton
Raffey Cassidy Athena
Chris Bauer Frank's Dad
Brad Bird Producer, Director, Story, Screenplay
Tim McGraw Eddie Newton
Matthew Kevin Anderson Bus Driver
Damon Lindelof Producer, Story, Screenplay
Jedidiah Goodacre Jetpack Buddy
Michael Giacchino Original Music Composer, Small World Operator
Erik Messerschmidt Gaffer
Patrick Sabongui Eiffel Tower Guard #1
Jaeda Lily Miller Young Casey (uncredited)
Marcus Rosner Handsome Harry (uncredited)
Matthew MacCaull Dave Clark
Pierce Gagnon Nate Newton
Garry Chalk Jail Desk Jockey
Shiloh Nelson Young Casey Newton
Monique Ganderton Stunts, Dave Clark #1 (uncredited)
David Nykl Science Teacher
Garvin Cross Stunts
Walter Murch Editor
Claudio Miranda Director of Photography
Ed Anders Stunts
Gary Rydstrom Sound Re-Recording Mixer
Tom Butler Police Captain
Thomas Robinson Young Frank Walker
Alex Levy Music Editor
Loyd Bateman Stunts
Aliyah O'Brien Functionary (uncredited)
Krista Bell Stunt Double
Darren Shahlavi Tough Guard
Robert Alonzo Stunt Coordinator
Paul Anthony Thick Glasses (uncredited)
Owen Walstrom Stunts
BJ McDonnell Steadicam Operator
Paul McGillion English Teacher
Eddie Perez Dave Clark #2 (uncredited)
Jeff Jensen Story
Tim Perez Deputy
Gwendolyn Yates Whittle Supervising Sound Editor
Darien Provost Mikey (uncredited)
Teresa Eckton Foley
Alex Barima Jetpack Buddy
Fraser Corbett Jensen
Jennifer Page Casting
Chris Castaldi First Assistant Director
Priya Rajaratnam Young Astronaut
Jeffrey Kurland Costume Design
Barbara Keegan World's Fair Patron (uncredited)
Ellen Marguerite Cullivan Neighbor (uncredited)
Xantha Radley History Teacher
Bernard Bellew Executive Producer
Luke Freeborn Art Direction
Todd Cherniawsky Art Direction
Donald Dowd Technical Advisor
Craig Wood Editor
Charles Leitrants Construction Coordinator
Joey Box Stunt Coordinator
Felix Kjellberg PewDiePie (uncredited)
Juan Peralta Sound Re-Recording Mixer
Tex Kadonaga Set Designer
Pascal Garneau Foley
Romuald Hivert Eiffel Tower Guard #2
Jeremy Bowker Sound Effects Editor
Janene Carleton Stunts
Jeremy Stanbridge Art Direction