Steve Carell

as John du Pont

Channing Tatum

as Mark Schultz

Mark Ruffalo

as David Schultz

Sienna Miller

as Nancy Schultz

Vanessa Redgrave

as Jean du Pont

Anthony Michael Hall

as Jack

Guy Boyd

as Henry Beck

Brett Rice

as Fred Cole

Jackson Frazer

as Alexander Schultz

Samara Lee

as Danielle Schultz

Francis J. Murphy III

as Wayne Kendall

Jane Mowder

as Rosie

David Bennett

as Documentary Director

Lee Perkins

as Corporal

Robert Haramia

as Banquet Guest

Daniel Hilt

as Roberto Garcia

Bryan Cook

as Ben Langer

David Zabriskie

as Dan Bane

Zach Rey

as Foxcatcher Wrestler #1

Reece Humphrey

as Foxcatcher Wrestler #2

J.D. Bergman

as Foxcatcher Wrestler #3

Corey Jantzen

as Foxcatcher Wrestler #4

Frederick Feeney

as Seoul Referee

Mark Schultz

as Weigh-in Official #1

Lee Kemp

as Weigh-in Official #2

Jake Herbert

as Mark's Opponent at Trials

Donald Modrick

as Front Gate Guard

Gabrielle Burton

as School Secretary

Kevin Cooke

as Photographer

Richard E. Chapla Jr.

as Broiler Hut Cashier

Bill Ehrin

as Broiler Hut Patron

Roger Callard

as Helicopter Pilot

Dan Anders

as General

Barry Vlanich

as D.C. Partygoer

Sam Brehm

as Hank Church

Stan Dziedzic

as USA Wrestling Rep #1

David Miller

as USA Wrestling Rep #2

Brian Baumgartner

as USA Wrestling Rep #3

Joe Russo

as Olympic Trials Referee

Ken Williams

as Coach Ken

Gene Mills

as Worlds Referee

John C. Baxter

as Worlds Announcer

Rick Steigerwald

as Wexler Trainer

Marc Snider

as MMA Referee

Jaz Securo

as MMA Announcer

Corey Walker

as MMA Backstage Official

Alan Oppenheimer

as Du Pont Dynasty Narrator (voice)

Joe Fishel

as Trainer

Jackson Nunn

as Spectator (uncredited)

Lou Consolo

as Fight Manager (uncredited)