Double Cross - Cast

Name	Episodes	Known for
Jimmy Jewel Jimmy Seymour / Smithers of MI5 Jimmy Seymour / Smithers of MI5 See fewer	6	The Avengers (1961)
Ben Warriss Ben Wait / Carstairs of MI5 Ben Wait / Carstairs of MI5 See fewer	6	Rhythm Serenade (1943)
Jill Day Betty Patterson Betty Patterson See fewer	6	Cinderella (1961)
Gerard Heinz Karl Peters Karl Peters See fewer	6	The Fallen Idol (1948)
Tonia Bern Irene Irene See fewer	6	Keep It Clean (I) (1956)
Fred Kitchen Jr. Colonel Trench of MI5 Colonel Trench of MI5 See fewer	4	Armchair Theatre (1956)
Ken Barker Jackson, Trench's assistant Jackson, Trench's assistant See fewer	4	Robin Hood: Prince of Thieves (1991)
Del Watson Walters Walters See fewer	4	The Chimney Sweeps (1963)
Patricia Laffan Self - Guest Artist Self - Guest Artist See fewer	1	Quo Vadis (1951)
Ferdy Mayne Major Helston Major Helston See fewer	1	Where Eagles Dare (1968)
Paul Hardtmuth Professor Henker Professor Henker See fewer	1	The Curse of Frankenstein (1957)
Ernst Ulman Waiter on train Waiter on train See fewer	1	Night Train to Surbiton (1965)
Harry Lane Erik Erik See fewer	1	Potts in Parovia (1956)
Raymond Rollett Police Chief Police Chief See fewer	1	The Fighting Pimpernel (1949)
John Stirling Man Man See fewer	1	Nicholas Nickleby (1957)
Jacqueline D'Orsay Hat check girl Hat check girl See fewer	1	The Nudist Story (1960)
Alf Dean Butch Butch See fewer	1	Dentist in the Chair (1960)
Maxine Daniels French singer French singer See fewer	1	Checkmate (II) (2018)
James Bulloch Waiter Waiter See fewer	1	The Secret Life of Pets (2016)
Pamela Beckman Film star Film star See fewer	1	The Best of Benny Hill (1974)
Dawn Chapple Stewardess Stewardess See fewer	1	Double Cross (1956)