Warren Hull
The Spider / Richard Wentworth / Blinky McQuade
Iris Meredith
Nita Van Sloan
Richard Fiske
Jackson
Kenne Duncan
Ram Singh
Forbes Murray
Police Commissioner Stanley Kirk
Marc Lawrence
Steve Harmon
Charles C. Wilson
Chase
Eugene Anderson Jr
Johnnie Sands
Ann Doran
Mason's Secretary
Paul Whitney
Gray
Beatrice Curtis
Kate Sands
Gordon Hart
J. Mason
Byron Foulger
Allen Roberts
Donald Douglas
Jenkins (the butler)
John Tyrrell
Henchman Grafton