Ralph Bellamy. Ralph Bellamy was 29 in One Is Guilty as 'Insp. Steve Trent'.
Shirley Grey. Shirley Grey was 32 in One Is Guilty as 'Sally Grey'.
Warren Hymer. Warren Hymer was 28 in One Is Guilty as ''Knock-Out' Walters'.
Rita La Roy. Rita La Roy was 32 in One Is Guilty as 'Lola Deveroux'.
J. Carrol Naish. J. Carrol Naish was 38 in One Is Guilty as 'Jack Allen'.
Wheeler Oakman. Wheeler Oakman was 44 in One Is Guilty as 'Toledo Eddie Marchetti'.
Willard Robertson. Willard Robertson was 48 in One Is Guilty as 'Wells Deveroux'.
Ralph Remley. Ralph Remley was 48 in One Is Guilty as ''Pop' Daley'.
Vincent Sherman. Vincent Sherman was 27 in One Is Guilty as 'William Malcolm'.
Harry Todd. Harry Todd was 70 in One Is Guilty as 'Danny O'Keefe'.
Sam Flint. Sam Flint was 51 in One Is Guilty as 'Coroner'.
Lambert Hillyer. Lambert Hillyer was 44 in One Is Guilty as 'Director'Harold Shumate. Harold Shumate was >> in One Is Guilty as 'Story, Screenplay'John Stumar. John Stumar was 41 in One Is Guilty as 'Cinematography'Irving Briskin. Irving Briskin was >> in One Is Guilty as 'Production Supervisor'Vernon Ashdown. Vernon Ashdown was >> in One Is Guilty as 'Sound Engineer'