Warren William

Michael Lanyard / The Lone Wolf

Ann Savage

Valerie King

Eric Blore

Llewellyn Jameson

Robert Stanford

Donald Jameson

Sheldon Leonard

Johnny Booth

Lloyd Bridges

Fritz

Gavin Muir

Karl

Grace Lem

Chinese Lady at Nightclub

Sig Arno

Mr. Whistler

Frank Arnold

French Waiter

Frances Chan

Chinese Lady at Nightclub

Darby Jones

Bellboy

Frank Lackteen

Laundry Proprietor

Mal Merrihugh

Chauffeur

Louis Merrill

Mr. Rembrandt

Jay Novello

Mr. Cezanne

Frank O'Connor

Wembley Agent

Jack Rice

Hotel Night Clerk

Floyd Shackelford

Bellboy

Gene Stone

Bartender

Nick Thompson

Henchman in Laundry

John Tyrrell

Wembley Agent

Frederick Worlock

Sir Roger Wembley