Narration (American scenes)
Producer
Director
Self - Mystery Guest (1 episode)
Adam Heyward
Director
Self - Host (318 episodes)
Producer (318 episodes)
Collier Laing
Director
Carey Jackson
Matt Saxon
Lucky Gagin
Director
Phillip Marlowe
Director
Lt. John Brickley
Tommy Duncan
Joe Pendleton
Philip Monrell
Lord Peter Wimsey
Robert Kilmount
Joel Sloane
Malcolm 'Mal' Niles
Himself
John O'Hara
David Conway
Bob Graham
Freddy Matthews
Lord Arthur Dilling
James Crocker, Jr.
Prince Florizel
Dascom Dinsmore
Sheridan 'Sherry' Warren
Benjamin Herries
Richard 'Dickie' Kurt
Dillon 'Dill" Todd
Jonathan 'Lucky' Wilson
Tommie L. Trent
Nicholas Revel
Paul Porter, aka Stephen Blaine
Himself - Premiere Clip (archive footage)
Auguste Pellerin
Victor Hallam
Jimmie
Lieut. Thomas Knowlton USN
William 'Bill' Wade
Larry Belmont
Hale Darrow
Max Clement
Willie Smith
Elyot Chase
Raymond Dabney
John Paul Jones
Jack Madison
André Montell
Wally O'Brien
Tony Jardine
Self (Guest Appearance at Premiere)
Nick Higginson
Kent Marlowe
Larry
John 'Jack' Douglas Cheever
Andy McAllister
William Foster
Party Boy (uncredited)