as James Gillespie
as Karl Ritter
as Father McPhail(1 ep)
as Lewis Mandorf
as Professor Kröhling(1 ep)
as Prof. Geoffrey Jennings-Wilson(1 ep)
as Attorney General
as Lord Justice Mathew(1 ep)
as Austin Ruthyn(1 ep)
as Browne(3 eps)
as Austin Ruthyn
as Brigadier Hugh Cairns
as Frank Ormsby(6 eps)
as Ken Tuke
as Doctor
as Sir Humphrey Logan
as Bernard Smith(1 ep)
as Christopher Riley
as Doctor(1 ep)
as Tuke(1 ep)
as Sir Humphrey Talbot(1 ep)
as Dr. Crawley(1 ep)
as The Head(1 ep)
as Sir Campbell Clark(1 ep)
as Mr Frederick Moore
as George Draycott(1 ep)
as Howarth(12 eps)
as Mr. Robert Corder(4 eps)
as Merrick(1 ep)
as Sir Geoffrey Wellingham(14 eps)
as Henry Laughlin(1 ep)
as Sorenson(1 ep)
as Dr. Bonhoeffer
as Dr. Bonhoeffer(1 ep)
as Maurice Stockton(13 eps)
as Colonel Ralph Kruger(7 eps)
as Lawrie(1 ep)
as Charlie Galbraith(1 ep)
as Frederick Moore(1 ep)
as Dr. Caswell
as Dr. Gibson(6 eps)
as Mr. Ryton(1 ep)
as British Briefing Officer
as Gilford(1 ep)
as Gustav
as Dr. Kohn(1 ep)
as Denholt(1 ep)
as Von Splitz(1 ep)
as Andrew Baker QC(1 ep)
as Jonathan McPhaen(1 ep)
as Gustav(1 ep)
as Rudi(4 eps)
as Kleve
as Headmaster
as Hendrik Van Meeren(1 ep)
as Hubert(1 ep)
as Peter Kroger(1 ep)
as David(1 ep)
as Doctor(1 ep)
as John Cleeve
as Charlie Lewis(2 eps)
as Murdoch Grant(1 ep)
as Dr Harmon(1 ep)
as Scott Hankin
as Brandon (as Alan MacNaughton)(1 ep)
as Gilpin(1 ep)
as Captain Bluecher(1 ep)
as Police Inspector (uncredited)
as Det. Sgt. Daley