Detective Inspector Jamieson
Sgt. Beck
Insp. Havelock
Octavius Lamb
Madeleine
Steven (as Simon Turner)
Lloyd
Mr. Humber
Miss Bennett
Bardon
Mary
Professor Friedland
Mr. Lavender
Mrs. Lavender
Mrs. Bute
Casson
Doctor Robson
Miss Compton
Sgt Latimer
P.C. Hanworth
P.C. York
Amy
Michael
Nurse
Receptionist