Richard Dix
— Pike Winslow
Shirley Grey
— Barbara Gerry
Purnell Pratt
— John Kirk
Ruth Weston
— Rose Harmer
Boris Karloff
— The Professor
Edmund Breese
— Frank Wells
Frank Sheridan
— Charles Harmer
Alan Roscoe
— Malcolm O'Neill
Nella Walker
— Aunt Matilda
Paul Hurst
— Doc
Carl Gerard
— Cyrus Pringle
Robert Emmett O'Connor
— Detective Brady
Phillips Smalley
— Thomas Drake
Symona Boniface
— Auction Attendee
James Conaty
— Country Club Guest
Frank Darien
— The Waiter
Sayre Dearing
— Country Club Guest
Bill Elliott
— Country Club Guest
Roberta Gale
— Telephone Operator
William Halligan
— Lyn Austin the Auctioneer
Rochelle Hudson
— Telephone Operator
Walter James
— Police Captain Anderson
Emmett King
— Eugene Gerry
Broderick O'Farrell
— Investigator for Board of Directors
Ronald R. Rondell
— Country Club Guest
Dick Rush
— Police Detective Burns
Florence Wix
— Country Club Guest