Andrew Ray

as Miles Crawshaw

as Self

as self

as Dr. John Reginald (8 episodes)

as Self (archive footage)

as Michael Swanton

as Duke of Windsor

as Alfred Rydale (2 episodes)

as Leach

as Leach (1 episode)

as Prof. Pigon

as Clifford Bradley (5 episodes)

as Clifford Bradley (6 episodes)

as Nick

as Major Otto Günsche

as Pilbrow

as Klaus Fuchs

as Roger Carson (1 episode), as Jerry Wilde (1 episode), as Percy Hayward (1 episode), as Steve (1 episode), as Cranmer Oakes (1 episode), as Harry Pope (1 episode)

as Duke of York (5 episodes)

as Duke of York

as Eric

as Eric (1 episode)

as Mortimer Lightwood (6 episodes)

as Toby

as Toby (1 episode)