Characters played by George Brent
Tim Hanley
Characters played by Ilona Massey
Carla Nillson
Characters played by Basil Rathbone
Reggie Oliver
Characters played by Gene Lockhart
Sidney Grenner
Characters played by George Zucco
Webster
Characters played by Francis Pierlot
Dr. Rowan
Characters played by Martin Kosleck
Bruner
Characters played by Charles D. Brown
Tetlow
Characters played by Marjorie Gateson
Bertha Grenner
Characters played by Leyland Hodgson
Sergeant Moulton
Characters played by Clayton Moore
Sewell
Characters played by Gordon De Main
Denby
Characters played by Frederick Worlock
Sir Henry
Characters played by Jack Mulhall
Desk Clerk
Characters played by Ralph Dunn
Don