Complicated plot involving missing stamp collection and kidnapped businessman, with the Lone Wolf keeping one step ahead of the police in Havana trying to solve the crime and make a profit.
Warren William
as Michael Lanyard
Frances Robinson
as Patricia Lawrence
Bruce Bennett
as Scotty
Eric Blore
as Jamison
Thurston Hall
as Inspector Crane
Jed Prouty
as Captain Moon
Fred Kelsey
as Dickens
Don Beddoe
as Big Joe Brady
Lester Matthews
as Mr. Lee
Edward Gargan
as Chimp
Eddie Laughton
as Measles
Mary Servoss
as Mrs. Colby