- Ron Randell
- Â Capt. Frank Hawthorn 26 episodes, 1957-1958
- Lionel Murton
- Â The Chief / ... 9 episodes, 1957-1958
- Robert Gallico
- Â Sgt. O'Brien / ... 8 episodes, 1957-1958
- Max Faulkner
- Â Crewman / ... 2 episodes, 1957-1958
- Howard Lang
- Â Bruehl / ... 3 episodes, 1957-1958
- Ryck Rydon
- Â Corporal / ... 3 episodes, 1957-1958
- Franklyn Fox
- Â Karl Wagner / ... 3 episodes, 1957-1958
- Reginald Hearne
- Â 2nd Nazi Patrol / ... 3 episodes, 1957-1958
- Cyril Chamberlain
- Â Courier / ... 3 episodes, 1957
- Frank Hawkins
- Â M.I.5 Agent 2 episodes, 1957
- Robert Henderson
- Â Brigadier General / ... 2 episodes, 1957-1958
- Esmond Knight
- Â Emil / ... 2 episodes, 1957-1958
- Lloyd Lamble
- Â Editor / ... 2 episodes, 1957-1958
- Gerard Heinz
- Â Kolonel / ... 2 episodes, 1957-1958
- Sandra Dorne
- Â Gizi / ... 2 episodes, 1957-1958
- Carl Jaffe
- Â General Kroll / ... 2 episodes, 1957-1958
- Robert Ayres
- Â U.S. Captain 2 episodes, 1957-1958
- Bill Edwards
- Â Navigator / ... 2 episodes, 1957-1958
- Murray Kash
- Â Kolinski / ... 2 episodes, 1957-1958
- Roland Brand
- Â Military Policeman / ... 2 episodes, 1957-1958
- Edwin Richfield
- Â Fischer / ... 2 episodes, 1957
- Patrick Jordan
- Â Max / ... 2 episodes, 1957
- John Gabriel
- Â Hotel Clerk / ... 2 episodes, 1957
- Theodore Wilhelm
- Â Cassetari / ... 1 episode, 1957
- Morris Sweden
- Â Matthews / ... 2 episodes, 1957
- Charles Stapley
- Â Doctor / ... 2 episodes, 1958
- Anthony Sheppard
- Â 1st Nazi / ... 2 episodes, 1958
- Gaylord Cavallaro
- Â Frenchy / ... 2 episodes, 1958
- Jeanette Sterke
- Â Josette 1 episode, 1957
- Robert Rietty
- Â Joe Heinz 1 episode, 1957
- Lyndon Brook
- Â James 1 episode, 1957
- Zena Marshall
- Â Lucille Genet 1 episode, 1957
- Basil Dignam
- Â Bosville 1 episode, 1957
- Patrick Holt
- Â Bill Webb 1 episode, 1957
- Christopher Rhodes
- Â Whitey Svensson 1 episode, 1957
- Naomi Chance
- Â Sheila 1 episode, 1957
- Barry Keegan
- Â Colonel Williams 1 episode, 1957
- Donald Stewart
- Â Doctor 1 episode, 1957
- Patricia Plunkett
- Â Anne Heinz 1 episode, 1957
- Robert Arden
- Â Joe Sammis 1 episode, 1957
- Carl Duering
- Â Nazi Officer 1 episode, 1957
- Thomas Gallagher
- Â Bull Hoolahan 1 episode, 1957
- Diane Todd
- Â Girl Singer 1 episode, 1957
- Lionel Ngakane
- Â Sam 1 episode, 1957
- Lois Maxwell
- Â Virginia 1 episode, 1957
- Leslie Phillips
- Â Foxie 1 episode, 1957
- John Crawford
- Â Crawford 1 episode, 1957
- Geoffrey Bayldon
- Â Abwehr Lieutenant 1 episode, 1957
- Walter Gotell
- Â Kommandant 1 episode, 1957
- Yvonne Romain
- Â French Girl 1 episode, 1957
- Michael Ripper
- Â Le Couteau 1 episode, 1957
- Denis Shaw
- Â Karger 1 episode, 1957
- Jan Holden
- Â Carla 1 episode, 1957
- Francis Matthews
- Â Peter Fox 1 episode, 1957
- Ronald Fraser
- Â Nazi Guard 1 episode, 1957
- Roger Delgado
- Â Luigi 1 episode, 1957
- David Graham
- Â Pilot 1 episode, 1957
- Lisa Gastoni
- Â Blue Eyes 1 episode, 1957
- Ferdy Mayne
- Â Abwehr Oberst von Bloch 1 episode, 1957
- Laya Raki
- Â Kyro Caro 1 episode, 1957
- Martin Benson
- Â Tullio 1 episode, 1957
- John Turner
- Â Hill Billy 1 episode, 1957
- Anita Sharp-Bolster
- Â Zero's Sister 1 episode, 1957
- Leonard Sachs
- Â Cianelli 1 episode, 1957
- John G. Heller
- Â German Guard 1 episode, 1957
- Peter Swanwick
- Â Hendrick 1 episode, 1957
- Bill Fraser
- Â Pietro 1 episode, 1957
- John Stuart
- Â Prison Governor 1 episode, 1957
- Oscar Quitak
- Â Batman 1 episode, 1957
- Nora Swinburne
- Â Madame Latour 1 episode, 1957
- Tom Watson
- Â Crewman 1 episode, 1957
- Wolfe Morris
- Â Guido 1 episode, 1957
- Arnold Diamond
- Â Brigadier Bosville 1 episode, 1957
- Peter Reynolds
- Â Ober-Leutnant 1 episode, 1957
- Enid Lorimer
- Â Madame Mureaux 1 episode, 1957
- Frederick Piper
- Â Kimmel 1 episode, 1957
- George Tovey
- Â Cabbie 1 episode, 1957
- Tony Doonan
- Â Eckler 1 episode, 1957
- John Van Eyssen
- Â Secretary 1 episode, 1957
- Peter Illing
- Â Cesare 1 episode, 1957
- Jerold Wells
- Â Klaus 1 episode, 1957
- Guy Deghy
- Â Simon 1 episode, 1957
- Tommy Duggan
- Â Cesare 1 episode, 1957
- Sheila Brennan
- Â Gabrielle 1 episode, 1957
- Robert O'Neil
- Â Co-Pilot 1 episode, 1957
- Wolf Frees
- Â Kommandant 1 episode, 1957
- Derek Sydney
- Â Fascist 1 episode, 1957
- John Cazabon
- Â Nun 1 episode, 1957
- Irene Prador
- Â Marina 1 episode, 1957
- Tom Naylor
- Â German Officer 1 episode, 1957
- James Dyrenforth
- Â Doctor 1 episode, 1957
- Brian Haines
- Â Kellerman 1 episode, 1957
- Bernard Hunter
- Â Nazi Officer 1 episode, 1957
- Stanley Van Beers
- Â Doctor 1 episode, 1957
- Michael David
- Â Jean-Pierre 1 episode, 1957
- Don Mason
- Â Co-pilot 1 episode, 1957
- Graham Stewart
- Â Franz 1 episode, 1957
- Patrick Waddington
- Â German Ambassador 1 episode, 1957
- Leonard Sharp
- Â Rafferty 1 episode, 1957
- David Williams
- Â Soldier 1 episode, 1957
- Alan Rolfe
- Â Prison Guard 1 episode, 1957
- Rudolph Offenbach
- Â Labourdet 1 episode, 1957
- Richard Molinas
- Â Pilette 1 episode, 1957
- Jacques Cey
- Â Claude 1 episode, 1957
- Sandra Francis
- Â Maria 1 episode, 1957
- Renee Goddard
- Â Nurse 1 episode, 1957
- Derek Prentice
- Â Shelley 1 episode, 1957
- Caroline Sheldon
- Â Suzy 1 episode, 1957
- Robert Perceval
- Â General 1 episode, 1957
- Victor Baring
- Â Guido 1 episode, 1957
- Charles Irwin
- Â Oliver 1 episode, 1957
- Gil Winfield
- Â U.S.S. Driver 1 episode, 1957
- Arthur Bentley
- Â Doctor 1 episode, 1957
- Clive Carson
- Â Marco 1 episode, 1957
- Peter Taylor
- Â Sentry 1 episode, 1957
- David Franks
- Â Vito 1 episode, 1957
- Thomas Foulkes
- Â Otto Weiner 1 episode, 1957
- Edward Ballard
- Â Sailor 1 episode, 1957
- W. Thorp Deverreux
- Â Van Groot 1 episode, 1957
- John Valentine
- Â Radio Sergeant 1 episode, 1957
- Timothy Grey
- Â Junior Officer 1 episode, 1957
- Donald Masters
- Â Favermann 1 episode, 1957
- John Crowest
- Â Naval Lt. 1 episode, 1957
- Christopher Lee
- Â Dessinger 1 episode, 1958
- Anton Diffring
- Â Schneider 1 episode, 1958
- Edward Judd
- Â First Nazi 1 episode, 1958
- James Hayter
- Â Jones 1 episode, 1958
- Sarah Lawson
- Â Ella 1 episode, 1958
- Rupert Davies
- Â Dupont 1 episode, 1958
- Gerald Harper
- Â Lt. Patrick 1 episode, 1958
- Neil Hallett
- Â Falkenburg 1 episode, 1958
- Conrad Phillips
- Â Mireaux 1 episode, 1958
- George Mikell
- Â Junior Officer 1 episode, 1958
- Bill Nagy
- Â Maone 1 episode, 1958
- Ronald Leigh-Hunt
- Â Gunther 1 episode, 1958
- Peter Burton
- Â Spanish Major 1 episode, 1958
- John Dearth
- Â French Soldier 1 episode, 1958
- Jerry Stovin
- Â First Pilot 1 episode, 1958
- Richard Shaw
- Â Kommandant 1 episode, 1958
- Richard Bebb
- Â Matelon 1 episode, 1958
- Tom Busby
- Â Eilers 1 episode, 1958
- John Bay
- Â Second Pilot 1 episode, 1958
- Neal Arden
- Â First Minister 1 episode, 1958
- Tony Thawnton
- Â French Officer 1 episode, 1958
- Gordon Tanner
- Â Ferry 1 episode, 1958
- Billy Milton
- Â Papa 1 episode, 1958
- Paula Byrne
- Â Suzanne 1 episode, 1958
- Alastair Hunter
- Â Doctor 1 episode, 1958
- Gordon Sterne
- Â Flight Medic 1 episode, 1958
- Joy Webster
- Â Girl at Bar 1 episode, 1958
- Reed De Rouen
- Â Hartley 1 episode, 1958
- E. Kerrigan Prescott
- Â Tex Norton 1 episode, 1958
- Joanne Dainton
- Â Nurse 1 episode, 1958
- Frank Sieman
- Â Doctor 1 episode, 1958
- Pauline Winter
- Â Waitress 1 episode, 1958
- Arthur Lawrence
- Â Kommandant 1 episode, 1958
- Lesley Dudley
- Â Ilse 1 episode, 1958
- Carl Conway
- Â Kurt 1 episode, 1958
- Vivian Matalon
- Â McGaffery 1 episode, 1958
- Kenneth Midwood
- Â Intruder 1 episode, 1958
- Jimmy Karoubi
- Â Schneider 1 episode, 1958
- Sheldon Lawrence
- Â Olson 1 episode, 1958
- Tom Bowman
- Â Kapitan 1 episode, 1958
- Robert Percival
- Â US General 1 episode, 1958
- Stewart Guidotti
- Â Rene 1 episode, 1958
- George Howell
- Â Jean 1 episode, 1958
- Alan Wilson
- Â 1st Nazi Patrol 1 episode, 1958
- Richard Golding
- Â Arab Vendor 1 episode, 1958
- John Cronin
- Â 2nd Nazi 1 episode, 1958
- Gerik Schjelderup
- Â Dr. Henni 1 episode, 1958
- Brian Sheehy
- Â Nielson 1 episode, 1958
- Jane Dore
- Â Dancer 1 episode, 1958
- Clifford Buckton
- Â Second Farmer 1 episode, 1958
- Ellen Blueth
- Â Inga 1 episode, 1958
- Harry Moore
- Â Radio Officer 1 episode, 1958
- Cyril Wheeler
- Â Nazi Leader 1 episode, 1958
- Arthur Brander
- Â Club Manager 1 episode, 1958
- Robert Gammel
- Â Flight Sergeant 1 episode, 1958
- John Unicomb
- Â Nazi Officer 1 episode, 1958
- Donald Aulds
- Â Flight Sergeant 1 episode, 1958
- Robin Gammell
- Â 2nd Seaman (uncredited) 1 episode, 1957
- John Witty
- Â MI5 Man (uncredited) 1 episode, 1957
- Michael Kelly
- Â 1st Seaman (uncredited) 1 episode, 1957
- Richard Hayter
- Â Music Shop Proprietor (uncredited) 1 episode, 1957
