Tom Hiddleston
Role: Charles 'Chuck' Krantz
Benjamin Pajak
Role: Charles 'Chuck' Krantz (pre-teen)
Nick Offerman
Role: Narrator (voice)
Chiwetel Ejiofor
Role: Marty Anderson
Karen Gillan
Role: Felicia Gordon
Mia Sara
Role: Sarah Krantz
Mark Hamill
Role: Albie Krantz
Annalise Basso
Role: Janice Halliday
Jacob Tremblay
Role: Charles 'Chuck' Krantz (teen)
Cody Flanagan
Role: Charles 'Chuck' Krantz (child)
Samantha Sloyan
Role: Miss Rohrbacher
Trinity Bliss
Role: Cat McCoy
David Dastmalchian
Role: Josh
Kate Siegel
Role: Miss Richards
Harvey Guillén
Role: Hector
Saidah Arrika Ekulona
Role: Andrea
Carl Lumbly
Role: Sam Yarbrough
Taylor Gordon
Role: Taylor Franck
Michael Trucco
Role: Dylan's Dad
Q'orianka Kilcher
Role: Virginia 'Ginny' Krantz
Heather Langenkamp
Role: Vera Stanley
Amy Biedel
Role: Dylan's Mom
Franklin Ritch
Role: Brent
Antonio Raul Garcia
Role: Brian Krantz
Molly C. Quinn
Role: Chuck's Mother
Lily Rose Lumpkin
Role: Clerk
Sauriyan Sapkota
Role: Ram
Mackenzie Gwaltney
Role: Student #2
Anne Russell West
Role: Student #3
Kyler Alan Collvins
Role: Timmy
Mike Flanagan
Role: Mourner
Matt Biedel
Role: Doctor Winston
Carla Gugino
Role: News and Commercial Voice (voice)
Elan Gale
Role: Radio News Reporter (voice)
Eric Vespe
Role: Radio Host #1 (voice)
Scott Wampler
Role: Radio Host #2 (voice)
Hamish Linklater
Role: American Reporter (voice)
Axelle Carolyn
Role: French Reporter (voice)
Sandra Hess
Role: German Reporter (voice)
Alexa Bolter
Role: UK Reporter (voice)
Lauren LaVera
Role: Italian Reporter (voice)
Mikki Levi
Role: Japanese Reporter (voice)
Raymond Garcia
Role: Spanish Reporter (voice)
Trevor Macy
Role: Mourner (uncredited)
