Robert Livingston
Dr. Terrance 'Terry' Evans
Lorna Gray
Nurse Susan Drake
Ian Keith
Ormond Murks
Thomas E. Jackson
Detective Blair
Charles Trowbridge
Dr. Rufus Maynard
Earle Hodgins
Fred Mays (Fred Murks)
Wilton Graff
Dr. Lucifer Garland
LeRoy Mason
Detective Hendricks
William Haade
Police Officer 'Tiny'
Charles Cane
Chief Inspector Ryan
