Steve Carell
John du Pont
Channing Tatum
Mark Schultz
Mark Ruffalo
David Schultz
Sienna Miller
Nancy Schultz
Vanessa Redgrave
Jean du Pont
Anthony Michael Hall
Jack
Guy Boyd
Henry Beck
Brett Rice
Fred Cole
Jackson Frazer
Alexander Schultz
Samara Lee
Danielle Schultz
Francis J. Murphy III
Wayne Kendall
Jane Mowder
Rosie
David Bennett
Documentary Director
Lee Perkins
Corporal
Robert Haramia
Banquet Guest
Daniel Hilt
Roberto Garcia
Bryan Cook
Ben Langer
David Zabriskie
Dan Bane
Zach Rey
Foxcatcher Wrestler #1
Reece Humphrey
Foxcatcher Wrestler #2
J.D. Bergman
Foxcatcher Wrestler #3
Corey Jantzen
Foxcatcher Wrestler #4
Frederick Feeney
Seoul Referee
Mark Schultz
Weigh-in Official #1
Lee Kemp
Weigh-in Official #2
Jake Herbert
Mark's Opponent at Trials
Donald Modrick
Front Gate Guard
Gabrielle Burton
School Secretary
Kevin Cooke
Photographer
Richard E. Chapla Jr.
Broiler Hut Cashier
Bill Ehrin
Broiler Hut Patron
Roger Callard
Helicopter Pilot
Dan Anders
General
Barry Vlanich
D.C. Partygoer
Sam Brehm
Hank Church
Stan Dziedzic
USA Wrestling Rep #1
David Miller
USA Wrestling Rep #2
Brian Baumgartner
USA Wrestling Rep #3
Joe Russo
Olympic Trials Referee
Ken Williams
Coach Ken
Gene Mills
Worlds Referee
John C. Baxter
Worlds Announcer
Rick Steigerwald
Wexler Trainer
Marc Snider
MMA Referee
Jaz Securo
MMA Announcer
Corey Walker
MMA Backstage Official
Alan Oppenheimer
Du Pont Dynasty Narrator (voice)
Joe Fishel
Trainer
Jackson Nunn
Spectator (uncredited)
Lou Consolo
Fight Manager (uncredited)