Edmund Lowe as Capt. Karl Torok

Karen Morley as Countess Madalaine

Paul Cavanagh as Count Peter Alvinczy

Gene Lockhart as Gabor

Una O'Connor as Julie, Hotel Maid

Russell Hicks as Prefect of Police

Herman Bing as Taxi Driver

Cornelius Keefe as Paul Szegedy

Gloria Roy as Katherine Szabo

Bodil Rosing as Lisa

John Qualen as Hotel Porter

Arthur Edmund Carewe as Professor Omega

Bess Flowers as Party Guest

William Bailey as Party Guest

Brooks Benedict as Party Guest

Stanley Blystone as Policeman

Dell Henderson as Ambassador - Party Guest

Gladden James as Police Secretary

Kathleen Key as Party Guest

Lenita Lane as Party Guest

Matt McHugh as Police Secretary

Torben Meyer as Cafe Owner

Adolph Milar as Party Servant

Constance Purdy as Cafe Owner's Wife

Larry Steers as Baron de Palma - Party Guest

Landers Stevens as Hans

Betty Stockton as Party Guest

Anders Van Haden as Policeman

Polly Ann Young as Torok's Sweetheart