Stanley

Charlie Hunnam

Lion

Jack O'Connell

Pepper

Jonathan Majors

Sky

Jessica Barden

Buck

Fran Kranz

Yates

John Cullum

Clay Carlson

Nick Mullen

Meadows

Owen Burke

Darlene

Meredith Holzman

Old Senior

Ken Cheeseman

Kind Father

Michael Tow

Reggie

Johnno Wilson

Stepfather McGinty

Jere Shea

Lefty Denunzio

Patrick M. Walsh

Roman

Lucien Spelman

Lefty's Buddy (uncredited)

David Torres Jr.

Zeus

Bill Thorpe

Mother McGinty

Margaret Devine

Burly Father

Frank Ridley

Bartender

Michael Stanton

Waitress

Wendy Overly

Peppers head thug

Manny Jagroop

Pepper's Crew

Christopher Michael Cagle

Boxing Trainer (credit only)

Keith Kozlin

Boxing Coach

Kyle Cusick

Fight Spectator

Bob Mendell

Referee

Ed LaVache

Train Patron

Thomas J Berry

Fight Attendant

Ronald Cabral

Amtrak Employee

Christina Calvao

Diner Waitress

Ellen Collins

San Francisco Police Officer

Guy Cooper

College Girl

Jamie Ghazarian

Boxing Patron

Jed Griswold

Bar Patron

Tony Ionno

SF China Town Cop

Dawayne Jordan

Bus Traveler

Gwen MacKay

Fight Guest

Brooke Arcadio Navarro

San Francisco police detective

Mel Powell

Bus Patron

Russell J. Ramos

Clay's Frat Brother

Daniel Shealy

SF Detective

Billy Silvia

Lefty's Entourage

Bruce Soscia

Detective

Bruce Spears

Pepper's Crew

Christopher Cagle

Joey (uncredited)

Joseph Oliveira