Secret Service Investigator: Cast
Lynne Roberts
Susan Lane
Lloyd Bridges
Steve Mallory / Dan Redfern
George Zucco
Otto Dagoff
June Storey
Laura Deering Redfern
Trevor Bardette
Trevor Bardette
John Kellogg
Benny Deering
Jack Overman
Herman
Roy Barcroft
Al Turk
Douglas Evans
Secret Service Inspector Crehan
Milton Parsons
Miller
James Flavin
Police Inspector Thorndyke
William Benedict
Counterman
Minerva Urecal
Mrs McGiven
Tommy Ivo
Teddy Lane
Sam McDaniel
Porter
George Douglas
Secret Service Agent (uncredited)
Carole Gallagher
Newspaper Flirt (uncredited)
George Magrill
Police Officer (uncredited)
Frank O'Connor
Hotel Guest / Coffee Drinker (uncredited)
Charles Sullivan
Cab Driver (uncredited)