Roy Markham (59 episodes, 1959-1960)
John Riggs (8 episodes, 1959)
Henry Cowell / Mr. Becsow / Pietro - Concierge (3 episodes, 1959-1960)
Lieutenant J.K. Kehoe / Lt. Keough / Police Lt. Kehough (3 episodes, 1959)
Flora - Tourist / Landlady / Mrs. Cowell (3 episodes, 1959-1960)
Capt. Hernando / Marrotte / Vargo Frietas (3 episodes, 1959-1960)
Philip Booth / Stephen Wallace (2 episodes, 1959-1960)
Lenora Standish / Mary Nicholson (2 episodes, 1960)
Clara Graves / Impostor Agnes Morton (2 episodes, 1959-1960)
Micheline / Valerie Graves (2 episodes, 1959-1960)
Dr. James Landrum / Harry Anselmo (2 episodes, 1959-1960)
Insurance Agent Millaud / Jacque Reynaud (2 episodes, 1959-1960)
Brady Conroy / Silky Morgan (2 episodes, 1960)
Police Lieutenant / Police Lt. Hardridge (2 episodes, 1959-1960)
Garon - Thug / O'Roarke (2 episodes, 1959-1960)
Police Lieutenant / Sgt. Al Bryan (2 episodes, 1960)
Al Forester / Larry Blanchard (2 episodes, 1959-1960)
Officer Jim Harvey (2 episodes, 1959-1960)
Leeds - Mobster / Leo Curlen (2 episodes, 1959-1960)
Amy Williams / Marina - Model (2 episodes, 1959)
Airline Captain (2 episodes, 1960)
Building Superintendant (2 episodes, 1959-1960)
Jackson Shaw (2 episodes, 1959-1960)
Maria Turner (2 episodes, 1959-1960)
Stephen Saltzman / Veiller (2 episodes, 1959-1960)
Pierre (2 episodes, 1959-1960)
Janet Standish / Linda Fowler (2 episodes, 1960)
Ellen Amery (1 episode, 1959)
Rita Evans (1 episode, 1959)
Tammy Miles (1 episode, 1959)
Diana Fitzgerald / Miss Mastello (1 episode, 1959)
Mona Deering (1 episode, 1959)
Friday Bozman (1 episode, 1959)
Katie Monahan / Princess Katie Ocelli (1 episode, 1959)
Cathy Williams (1 episode, 1959)
Ellen Childs (1 episode, 1959)
Bernard Frazer (1 episode, 1959)
Father Mike Weathergay (1 episode, 1959)
David Markham (1 episode, 1959)
Clarissa - Landlady's Daughter (1 episode, 1959)
Joe Cloutman (1 episode, 1959)
Howard Fulton (1 episode, 1959)
Andre Marchand (1 episode, 1959)
Stacey Winters (1 episode, 1960)
Jean Trevor (1 episode, 1960)
Carla Zanella (1 episode, 1960)
Mary Stewart / Mrs. Arnold Carson (1 episode, 1960)
Amy Rae (1 episode, 1960)
Carmela (1 episode, 1960)
Sandy Boon (1 episode, 1960)
Sylvia Truscott (1 episode, 1960)
Charlie Russell (1 episode, 1960)
Philip Franklin (1 episode, 1960)
Marteau (1 episode, 1960)
Eddie Damon (1 episode, 1960)
Mr. Collier (1 episode, 1960)
Muriel Miles (1 episode, 1959)
Louise Ariargua (1 episode, 1959)
Ann Jennings (1 episode, 1959)
Albergat / Jason (1 episode, 1959)
Tony Pellargo (1 episode, 1959)
Cyrus Robinson (1 episode, 1959)
Ann Shaw (1 episode, 1959)
Prince Cosmo Ocelli (1 episode, 1959)
Joseph Amery (1 episode, 1959)
Jan Van Pelt (1 episode, 1959)
Max Bozman (1 episode, 1959)
Paul Stevens (1 episode, 1959)
Susan Turner (1 episode, 1959)
Laura Wallace (1 episode, 1959)
Bert Evans (1 episode, 1959)
Richard Stanton (1 episode, 1959)
Rennick (1 episode, 1959)
Andre Valcour (1 episode, 1959)
Ramik Sarid (1 episode, 1959)
Sir Arthur White (1 episode, 1959)
Philip Crutchley (1 episode, 1959)
Tom Fulton (1 episode, 1959)
Harry Slade (1 episode, 1959)
Lupe Amoroso (1 episode, 1960)
Walter Trevor (1 episode, 1960)
Andy Parker (1 episode, 1960)
Lincoln Winters (1 episode, 1960)
Linda Morrisey (1 episode, 1960)
Police Captain Mascotti (1 episode, 1960)
Guy Franklin (1 episode, 1960)
Douglas Nicholson (1 episode, 1960)
Commissioner Fred Clayton (1 episode, 1960)
Mme. Collet (1 episode, 1960)
Police Officer (1 episode, 1960)
Packy / Sworts (1 episode, 1960)
Dale - Henchman (1 episode, 1960)
Cathy (1 episode, 1960)
Charlotte Millar (1 episode, 1959)
Mrs. Miles (1 episode, 1959)
Julia Conrad (1 episode, 1959)
Helen Burke (1 episode, 1959)
Metcalfe (1 episode, 1959)
Phil Fletcher (1 episode, 1959)
Fred Belden (1 episode, 1959)
Professor Vernon Williams (1 episode, 1959)
Herr Mannheim (1 episode, 1959)
Zach - Henchman (1 episode, 1959)
Carl Sanders (1 episode, 1959)
Carlos Gallardo (1 episode, 1959)
Rita Hastings (1 episode, 1959)
Frank Evans (1 episode, 1959)
Steve - Superintendant (1 episode, 1959)
Landlady (1 episode, 1959)
Joe Sweetson (1 episode, 1959)
Alexis - Assassin (1 episode, 1959)
Martin Valcour (1 episode, 1959)
Paco (1 episode, 1959)
Chief Inspector (1 episode, 1959)
Boris Vascou (1 episode, 1959)
Grube (1 episode, 1959)
Dr. Frank Flemming (1 episode, 1960)
Penelope Parker (1 episode, 1960)
Doorman (1 episode, 1960)
Jimmy Standish (1 episode, 1960)
Lieutenant Gromby (1 episode, 1960)
Mrs.Truscott (1 episode, 1960)
Elsie Jones (1 episode, 1960)
D.A. Jason Boon (1 episode, 1960)
Joseph Potter (1 episode, 1960)
Norval (1 episode, 1960)
(1 episode, 1960)
Bagley (1 episode, 1960)
Corbino - Sculptor (1 episode, 1959)
John White (1 episode, 1959)
George Conrad (1 episode, 1959)
Bill Delaney (1 episode, 1959)
Ben Miles (1 episode, 1959)
Esperanza (1 episode, 1959)
Largo - Assassin (1 episode, 1959)
Connie Talbot (1 episode, 1959)
Renee Compante (1 episode, 1959)
Lt. Roca (1 episode, 1959)
Francie - Waitress (1 episode, 1959)
(1 episode, 1959)
Police Lieutenant (1 episode, 1959)
Fred (1 episode, 1959)
Phillip Graff (1 episode, 1959)
Police Chief Gomez (1 episode, 1959)
Hotel Manager (1 episode, 1959)
Barry English (1 episode, 1959)
Fred Young (1 episode, 1959)
Leonard (1 episode, 1959)
George Wagner (1 episode, 1960)
Robby Carson (1 episode, 1960)
Mrs. Franklin (1 episode, 1960)
Mrs. Frost (1 episode, 1960)
Henri Chanu (1 episode, 1960)
Rae (1 episode, 1960)
Diane (1 episode, 1960)
Father Samuel (1 episode, 1960)
Crocker - Henchman (1 episode, 1960)
Beau 'Bull' Bowen (1 episode, 1959)
Charlie 'Abby' York (1 episode, 1959)
Mrs. Potter (1 episode, 1959)
Lt. Conrad (1 episode, 1959)
J.J. - Mobster (1 episode, 1959)
Constantine (1 episode, 1959)
Diana Rogers (1 episode, 1959)
Gordon Reeves (1 episode, 1959)
Ernest Bormann (1 episode, 1959)
Det. John Sloan (1 episode, 1959)
Helen Dunhill (1 episode, 1959)
Miss Hamilton (1 episode, 1959)
Martinez - Mobster (1 episode, 1959)
Vernon Morton (1 episode, 1959)
Flameco Dancer (1 episode, 1959)
Henchman (1 episode, 1959)
Spencer Combs (1 episode, 1960)
Miss Fordice - RN (1 episode, 1960)
Nicholas (1 episode, 1960)
DeCayette (1 episode, 1960)
Train Conductor (1 episode, 1960)
Barry - Henchman (1 episode, 1960)
The Ape (1 episode, 1960)
Monique (1 episode, 1960)
Police Constable (1 episode, 1959)
Harold Burgess (1 episode, 1959)
Dr. Cowden (1 episode, 1959)
Police Lt. Burgess (1 episode, 1959)
Jack Morrison (1 episode, 1959)
Ronnie Evans (1 episode, 1959)
Felipe - French Contact (1 episode, 1959)
Manny - Mobster (1 episode, 1959)
Inspector Schneider (1 episode, 1959)
Dr. Miles Bowman (1 episode, 1959)
Mrs. Harding - Headmistress (1 episode, 1959)
the Medium (1 episode, 1959)
Waiter (1 episode, 1959)
Allen (1 episode, 1959)
Leon DuCleau (1 episode, 1959)
Longworth (1 episode, 1959)
Police Commissioner Langres (1 episode, 1960)
Cal Windon (1 episode, 1960)
Maggie (1 episode, 1960)
Prof. Angus MacKenzie (1 episode, 1960)
Barman (1 episode, 1960)
Judge Turner (1 episode, 1960)
Hatcheck Girl (1 episode, 1959)
Brinkman - Jewelry Appraiser (1 episode, 1959)
the Chef (1 episode, 1959)
Billy (1 episode, 1959)
Party Hostess (1 episode, 1959)
Police Commissioner (1 episode, 1959)
IRS Agent Newton (1 episode, 1959)
Reyes (1 episode, 1959)
Otto Diestl (1 episode, 1959)
Groves - Smuggler (1 episode, 1959)
Man at Bar (1 episode, 1959)
District Attorney (1 episode, 1959)
Markham's Love Interest (1 episode, 1959)
Judy Frost (1 episode, 1960)
Dr. Miriam Holloway (1 episode, 1960)
Maitre D' (1 episode, 1960)
Police Sergeant (1 episode, 1960)
Arthur Brookman (1 episode, 1959)
Charlie - Poet (1 episode, 1959)
Bartender (1 episode, 1959)
Stewardess (1 episode, 1959)
Markham Double (1 episode, 1959)
Raphael Ariargua (1 episode, 1959)
Valerie Carson (1 episode, 1959)
Felipe (1 episode, 1959)
Flora's Husband (1 episode, 1959)
Agnes Morton (1 episode, 1959)
Paul - Young Witness (1 episode, 1959)
Deidre 'Didi' Waugh (1 episode, 1960)
Markham's Secretary (1 episode, 1959)
Paul - Jewelry Designer (1 episode, 1959)
Starlet (1 episode, 1959)
Policeman (1 episode, 1959)
Mrs. Fairfax (1 episode, 1959)
Robert Horton (1 episode, 1959)
George Copen (1 episode, 1959)
A Cockney Boarder (1 episode, 1959)
Robbery Victim (1 episode, 1959)
Esteban (1 episode, 1959)
Stamp Clerk (1 episode, 1959)
Marie Vaughn (1 episode, 1959)
Charles Halliday (1 episode, 1959)
Pepe Martinez (1 episode, 1959)
Neji - Bakil's Girlfriend (1 episode, 1959)
Inspector Landres (1 episode, 1959)
Jack Berwick (1 episode, 1959)
Michael Rait (1 episode, 1959)
Amy - Waitress (1 episode, 1959)
Gloria Klotsky (1 episode, 1959)
Simon Berwick (1 episode, 1959)
Kitty Brady Berwick. (1 episode, 1959)
George Klotsky (1 episode, 1959)
Gloria Sloan Forbes (1 episode, 1959)
Hymie Kramer (1 episode, 1959)
Truck Driver in Restaurant (1 episode, 1959)
Colonel Monet (1 episode, 1959)
Biff Edwards (1 episode, 1959)
Dr. Gerhardt (1 episode, 1959)
Dr. Jon Mollet (1 episode, 1959)
Dr. Andre Dukas (1 episode, 1959)
First Mate Hali Bakil (1 episode, 1959)
Pablo (1 episode, 1959)
Rose Vaughn Rait (1 episode, 1959)
L'Laise Captain (1 episode, 1959)
Lisa Forbes (1 episode, 1959)
Don Lennard (1 episode, 1960)
Denise Copeland (1 episode, 1960)
Danny Standish (1 episode, 1960)
Doris Holland (1 episode, 1960)
Lydia Deeping (1 episode, 1960)
Neal Holland (1 episode, 1960)
Lucille Barrett (1 episode, 1960)
Rolland (1 episode, 1960)
Steve Powers (1 episode, 1960)
Mary Copeland (1 episode, 1960)
Doctor (1 episode, 1960)
Dr. Raymond Burke (1 episode, 1960)
Todd Sanscombe (1 episode, 1960)
Lt. Joe Rinaldi (1 episode, 1960)
Sylvia Lennard (1 episode, 1960)
Martha Webster (1 episode, 1960)
Jerry Clive (1 episode, 1960)
Angelo Adamic (1 episode, 1960)
Curly Donovan (1 episode, 1960)
Dr. Carl Lucas (1 episode, 1960)
Albert Morgan (1 episode, 1960)
Sally (1 episode, 1960)
Helen Adamic (1 episode, 1960)
Maclyn Thomas (1 episode, 1960)
Birch (1 episode, 1960)
Cash Fowler (1 episode, 1960)
Minnie - Maid (1 episode, 1960)
Stage Director (1 episode, 1960)
Sandra (1 episode, 1960)
Janet (1 episode, 1960)
Dashi (1 episode, 1960)
Arthur Simms (1 episode, 1960)
Tex (1 episode, 1960)
Marie (1 episode, 1960)
Beatrice Morgan (1 episode, 1960)
Jennings (1 episode, 1960)
Jerry Barrett (1 episode, 1960)
Rudy Rudich / Sam Copeland (1 episode, 1960)
Simone (1 episode, 1960)
Lady Carol Dexter (1 episode, 1960)
Sheik (1 episode, 1960)
Hassim Sikh (1 episode, 1960)
Sir Robert Dexter (1 episode, 1960)
Michael Thaw (1 episode, 1960)
Leading Man (1 episode, 1960)
Jewelry Clerk (uncredited) (1 episode, 1959)
Narciso (uncredited) (1 episode, 1959)
Cab Driver (uncredited) (1 episode, 1959)
Van Elder (uncredited) (1 episode, 1959)
Deputy Sheriff (uncredited) (1 episode, 1959)
Inspector Flanner (uncredited) (1 episode, 1960)
Miguel (uncredited) (1 episode, 1960)
Cabbie (uncredited) (1 episode, 1960)
Priest (uncredited) (1 episode, 1960)