The Plot Thickens
A priceless Cellini silver cup is stolen from a local museum with both Hildegarde and Oscar on the case.
Police Insp. Oscar Piper
Hildegarde Withers
Robert Wilkins
Alice Stevens
Kendall
Joe
John Carter
Marie
Jim
Dagmar
Robbins
Josephine, Hildegarde's Maid (uncredited)
Midget (uncredited)
Gas Station Attendant (uncredited)
Detective Fanning (uncredited)
Woman with Bag (uncredited)
Museum Guard in Egyptian Room (uncredited)
Man in Line for Inspection (uncredited)
Cassidy, a Policeman (uncredited)
Mr. Gordon, Museum Guard (uncredited)
First Hatless Suspect (uncredited)
Theresa the Cook (uncredited)
Man Threatening Carter (uncredited)
