Frank & Louis

Kingsley Ben-Adir

Frank

Rob Morgan

Louis

Residente

Julian (as René Pérez Joglar)

Rosalind Eleazar

Trish

Indira Varma

Dr Watts

Andy Cheung

Chao

Georgia Goodman

Prisoner Intake Officer

?

Matthew Shelby

Guard Joyce

?

Julian Clapton

Transfer Guard (uncredited)

Calum MacPherson

Barney

?

Ailema De Sousa

Miss Valentine

Matt Brewer

Patrick