Steven Cree

as Ben, Writer

as Elliot Carter

as Jonathan

as Bob Poland (2 episodes)

as Lukas

as David

as Agent Crasson

as Liam McKee

as Sam Henderson (6 episodes)

as Thomas

as Anthony

as Jacob Oleander (1 episode)

as Stuart Collier (6 episodes)

as Rigby

as The Man, Writer

as Gallowglass (5 episodes), as Gallowglass de Clermont (6 episodes)

as Sir Christopher Seton

as ARTi (voice)

as Major Timothy Pike

as Captain Stagg

as Bearded Man

as Brick