The Diamond Wizard

While in London trying to nab several fugitives who stole a million dollars from a U.S. Treasury vault, American federal agent Dennison (Dennis O'Keefe) assists Scotland Yard Insp. McClaren (Philip Friend) in his search for a missing atomic scientist (Paul Hardtmuth). The detective duo discovers that the key to solving both cases may rest with the scientist's daughter (Margaret Sheridan) and her fascinating diamond.

Cast

Dennis O'Keefe

Joe Dennison

Margaret Sheridan

Marline Miller

Philip Friend

Insp. McClaren

Alan Wheatley

Thompson Blake

Francis de Wolff

Yeo

Eric Berry

Hunziger

Gudrun Ure

Sgt. Smith

Seymour Green

Lascelles

Paul Hardtmuth

Dr. Eric Miller

Colin Tapley

Sir Stafford Beach