The Trainer

Kirk Myers

Don Lemon

Nat Faxon

Hot Baker (uncredited)

Lenny Kravitz

Will's Mom

Gus Van Sant

Carla Bruni

Timothée

Gavin Rossdale

Maimonides / The Backwards Guru

Chris Rock

Bono

Roberta 'Bob' Campbell

John McEnroe

Lauren Sánchez

Kevin Love

Jack Flex

Isaac Rabinowitz

Paris Hilton

Juicy J

Gayle King

Kevin Eubanks

Ai Weiwei

Sharon Stone

Trainer (uncredited)

Jack's Mother

Elektra

Charlotte McKinney

Finneas O'Connell

Jason Momoa

Snoop Dogg

Evan Ross

Will

Sandra Seacat

Brad Pitt

Zar Amir Ebrahimi

Mr. Chow

Luke

Bianca Slater

Julian Schnabel

Brian Tyree Henry

Bob Colacello

(uncredited)

Bee Luciani