Warren William

Michael Lanyard / The Lone Wolf

Marguerite Chapman

Eve Andrews

Eric Blore

Jamison

Mona Barrie

Jane Merrick

Tala Birell

Sonia Budenny

Margaret Hayes

Patricia Blake (Shaw)

Ann Savage

Vivian

Thurston Hall

Inspector Crane

Warren Ashe

Sidney Shannon

Fred Kelsey

Detective Dickens

Gerald Mohr

Harry Cooper

Louis Jean Heydt

Arthur

Frank Sully

Hertzog - Henchman

Eddie Marr

Mac, Henchman

Roger Clark

John Sheldon II

Gregory Gaye

Dr. Eric Budenny (as Gregory Gay)

Nina Vale

Coatroom Girl (uncredited)

Lloyd Bridges

Airline Gate Attendant (uncredited)