The Head

Ella Purnell

Lucy MacLean

Aaron Moten

Maximus

Kyle MacLachlan

Overseer Hank MacLean

Moisés Arias

Norm MacLean

Walton Goggins

The Ghoul / Cooper Howard

Xelia Mendes-Jones

Dane

Leslie Uggams

Betty Pearson

Johnny Pemberton

Thaddeus

Zach Cherry

Woody Thomas

Annabel O'Hagan

Stephanie Harper

Dave Register

Chet

Rodrigo Luzzi

Reg McPhee

Leer Leary

Davey

Brendan Burke

Officer Shortsight

Teagan Meredith

Janey Howard

Frances Turner

Barb Howard

Sheila Head

Marianne the Vault Scholar

Ash McNair

Emil Dale

Nina Kassa

Sarah Clements

Joe Castle Baker

George Yaffe

Roberto De Felice

Jorge the Villain

Eunice Bae

Assistant Director

Ethan Dubin

Scavenger Tom

Viola Hsia

Jamila

Daniel Martin

Dervin

Daniel Danielson

Vault 33 Engineer

C. Hope Belmont

Vault 33 Dweller

Alexa Marcigliano

Martha (uncredited)

Hannah Scott

Lucy MacLean Stunt Double

Justice Hedenberg

The Ghoul Stunt Double

David Armstrong

Thaddeus Stunt Double

Kyle W. Brown

Maximus Stunt Double

Matthew Quinn Flanagan

Thaddeus Stunt Double

Alex Dell'Aquila

Jorge the Villain Stunt Double

Benjamin Hinnant

Scavenger Tom Stunt Double

Evan Dane Taylor

Scavenger

Travis Staton-Marrero

Scavenger

Kevin Matthew Mcdonald

Scavenger