Jesse Eisenberg as Casey

Alessandro Nivola as Sensei

Imogen Poots as Anna

Steve Terada as Thomas

David Zellner as Henry

Phillip Andre Botello as Kennith

Jason Burkey as Alex

Mike Brooks as Steve

C.J. Rush as Other Steve

Davey Johnson as Gun Store Owner

Hauke Bahr as Grant

Katherine Martin as Bakery Woman

Cameron Murphy as New White Belt

Nicholas Hulstine as Pickup Truck Driver

Lena Friedrich as French Girl

Louis Robert Thompson as Veterinarian

Dallas Edwards as Manuel

Katherine Smith-Rodden as Store Cashier

Frederic Spitz as French Guy

Alex Haydon as Man Wearing Pants

Mark Sawyer-Dailey as Man Reading Newspaper

Leland Orser as Detective McCallister

Josh Fadem as Serial Killer

Scott Goodman as Drunk Man

Justin Eaton as Lone Man

Caroline Amiguet as French Audio Instructor (voice) (uncredited)