Mother Riley
Prof. Von Housen - aka The Vampire
Tilly
Anton
PC Freddie
The Yokel (as Graham Moffat)
Julia (as Maria Mercedes)
Douglas
Mugsy
Freda
Hitchcock
Mrs. Jenks
Mrs. Mott
Police Sergeant
Mugsy's Assistant
Nasty Boy
Sir Joshua Bing (as Charles Lloyd-Pack)
Police Brass
Van Driver
BBC Announcer
Robot Mark 1 (as Tom MacCauley)
Lady at Police Station (uncredited)
Police Constable (uncredited)
Scotland Yard Man (uncredited)
Police Sergeant at Desk (uncredited)
Sailor Playing Cards (uncredited)