"Delia Jordan's father is murdered and some very valuable jewelry stolen. She hires The Lone Wolf."
Warren William
as Michael Lanyard
Joan Perry
as Delia Jordan
Eric Blore
as Jamison
Alan Baxter
as Jim Ryder
Astrid Allwyn
as Binnie Weldon
Montagu Love
as Emil Gorlick
Robert Wilcox
as Ralph Bolton
Don Beddoe
as Inspector Conroy
Fred Kelsey
as Dickens
Addison Richards
as Stanley Young
Roy Gordon
as Phillip Jordan
Harland Tucker
as Alberts
George Lynn
as Dorgan
Murray Alper
as Pete
Harry A. Bailey
as Poker Game Dealer
Maurice Cass
as Jeweler at Martier's
Edmund Cobb
as Cop in Cellar
Vernon Dent
as Hotel Doorman
Richard Fiske
as Officer in Chase Car
Jack Gardner
as Gossiping Cabbie
Guy Kingsford
as Hotel Clerk
William Lally
as Bill
Joe McGuinn
as Officer Driving Chase Car
Robert Emmett O'Connor
as House Detective
Ralph Peters
as Doorman at Tony's
Charles Sherlock
as Poker Player
Jack Stoney
as Bill's Friend
Julius Tannen
as Hotel Manager
Cyril Thornton
as Frederick
Bob Walker
as Policeman
Robert Noble
as Jeweler Clerk (uncredited)
Frank Bruno
as Gossiper (uncredited)
Sidney Salkow
Director
Harry Segall
Screenplay
Albert Duffy
Dalton Trumbo
Story
Fred Kohlmar
Producer
Henry Freulich
Director of Photography
Al Clark
Editor
Lionel Banks
Art Direction
Robert Kalloch
Costume Design
Morris Stoloff
Music Director