Harold Scott

as Taylor

as Professor Gustav Schiller

as Caldwell

as Dench

as Crow

as Miles Lakin

as Dr. Pardon

as Portland

as Charlie Taplow

as Mr Justice Charles

as Severin (uncredited)

as Gaston

as Mr Petergate

as Thomas Barlow

as Knut Brovik

as Pedro

as Scientist

as Hugo Birch

as Waiter

as Maurice Emery KC

as Man in Underground

as Mr True

as Mr. de Roos

as Peters

as Mr. Bell