James Gleason
— Police Insp. Oscar Piper
Zasu Pitts
— Hildegarde Withers
Owen Davis Jr.
— Robert Wilkins
Louise Latimer
— Alice Stevens
Arthur Aylesworth
— Kendall
Paul Fix
— Joe
Richard Tucker
— John Carter
Barbara Barondess
— Marie
James Donlan
— Jim
Agnes Anderson
— Dagmar
Oscar Apfel
— Robbins
Alyce Ardell
— Josephine, Hildegarde's Maid (uncredited)
John T. Bambury
— Midget (uncredited)
Billy Dooley
— Gas Station Attendant (uncredited)
Frank Fanning
— Detective Fanning (uncredited)
Mary Gordon
— Woman with Bag (uncredited)
Reed Howes
— Museum Guard in Egyptian Room (uncredited)
John Indrisano
— Man in Line for Inspection (uncredited)
Lew Kelly
— Cassidy, a Policeman (uncredited)
John Miltern
— Mr. Gordon, Museum Guard (uncredited)
Tom Quinn
— First Hatless Suspect (uncredited)
Bodil Rosing
— Theresa the Cook (uncredited)
George Sorel
— Man Threatening Carter (uncredited)