Biff Baker (26 episodes, 1952-1954)
Louise Baker / Louise (26 episodes, 1952-1954)
Maurice (2 episodes, 1952-1953)
Dr. Josef Luger / The Man in Black (2 episodes, 1952)
(2 episodes, 1952-1954)
Czech spy / Wilhelm (2 episodes, 1952)
Captain Hollis / Michler (1 episode, 1952)
Madge (1 episode, 1952)
Prof. Artemus Beechem (1 episode, 1952)
Tommy Allen (1 episode, 1952)
Joseph (1 episode, 1952)
Maj. Morovik (1 episode, 1952)
Countess Gerta Von Romond (1 episode, 1952)
Tom Ling (1 episode, 1953)
Tio Bouvier (1 episode, 1953)
Shahab Hussein (1 episode, 1953)
Frankie Waller / Mr. Stark (1 episode, 1953)
Hank (1 episode, 1953)
Bill Evans (1 episode, 1954)
(1 episode, 1954)
S.S. Sarnevo / Sonia Kassin (1 episode, 1954)
Reicher (1 episode, 1952)
Inspector Hunt (1 episode, 1952)
Capt. Barrow (1 episode, 1952)
Tom Davenport (1 episode, 1952)
Paul Gautier (1 episode, 1952)
Mueller (1 episode, 1952)
Estes Bright (1 episode, 1953)
(1 episode, 1953)
Portagee Mike Swabo (1 episode, 1953)
Dr. Carruthers / Spaulding (1 episode, 1953)
Lee Ming Toy (1 episode, 1953)
Yin Yun (1 episode, 1954)
Sahood (1 episode, 1954)
The Inspector's Aide (1 episode, 1952)
Cpl. Seger (1 episode, 1952)
Commander (1 episode, 1952)
French Agent (1 episode, 1952)
Maj. Tannen / Senor Rodriguez (1 episode, 1952)
Max Von Romond (1 episode, 1952)
George Carlton (1 episode, 1953)
Dini Malloy (1 episode, 1953)
Lt. McFadden (1 episode, 1953)
Ann Spaulding (1 episode, 1953)
Captain Glendennon (1 episode, 1954)
Jimmy (1 episode, 1954)
Perkins (1 episode, 1952)
Jules Fridel (1 episode, 1952)
Anna, Joseph's Mother (1 episode, 1952)
(1 episode, 1952)
Smith (1 episode, 1952)
Gretchen (1 episode, 1952)
Macintosh (1 episode, 1953)
Rozan (1 episode, 1953)
Mai Quai (1 episode, 1953)
Casmar (1 episode, 1954)
Lee Chow (1 episode, 1954)
Soldier (1 episode, 1952)
Pretty Schoolgirl (1 episode, 1952)
Hans Herbert (1 episode, 1952)
Jack (1 episode, 1953)
Pete Johnson (1 episode, 1953)
Ruth Ling (1 episode, 1953)
Nellie (1 episode, 1954)
Servant (1 episode, 1954)
Cedric Ashby (1 episode, 1952)
Border Guard (1 episode, 1952)
Surete Inspector (1 episode, 1952)
Madame Dussard (1 episode, 1953)
Merchant (1 episode, 1953)
Johann Van Rentsler (1 episode, 1953)
Bartender (1 episode, 1953)
Johnson (1 episode, 1952)
Muller (1 episode, 1952)
The Henchman (1 episode, 1952)
Foreign Agent (1 episode, 1953)
Ishu (1 episode, 1953)
Studious Schoolgirl (1 episode, 1952)
Mrs. Fenwick (1 episode, 1953)
Olga (1 episode, 1953)
Henchman (uncredited) (1 episode, 1953)
Arab (uncredited) (1 episode, 1953)