Ralph Fiennes
Dr. Ian Kelson
Jack O'Connell
Sir Lord Jimmy Crystal
Alfie Williams
Spike / Jimmy
Erin Kellyman
Jimmy Ink
Chi Lewis-Parry
Samson
Emma Laird
Jimmima
Connor Newall
Jimmy Shite
Maura Bird
Jimmy Jones
Ghazi Al Ruffai
Jimmy Snake
Robert Rhodes
Jimmy Jimmy
Sam Locke
Jimmy Fox
Gareth Locke
Hunter
Celi Crossland
Pregnant Infected
Mirren Mack
Cathy
Gordon Alexander
Jonno
Louis Ashbourne Serkis
Tom
David Sterne
George
Elliot Benn
Matthew
Lynne Anne Rodgers
Jane Ji
Sebastian Williams-Barrow
Samson (Child)
Natalie Cousteau
Ticket Inspector
Maiya Eastmond
Sam
Cillian Murphy
Jim (uncredited)
Mia Verity
Train Passenger (uncredited)