Characters played by Beverly Garland
Joyce Webster - aka Jane Marvin
Characters played by Bruce Bennett
Dr. Eric Lorimer
Characters played by Lon Chaney Jr.
Manon
Characters played by George Macready
Dr. Mark Sinclair
Characters played by Frieda Inescort
Mrs. Lavinia Hawthorne - Henry's Wife
Characters played by Richard Crane
Paul Webster
Characters played by Douglas Kennedy
Dr. Wayne MacGregor
Characters played by Bill Bradley
Patient 'Number Six'
Characters played by Hal K. Dawson
Train Conductor
Characters played by Dudley Dickerson
Train Porter
Characters played by John Frederick
1st Male Nurse
Characters played by Ruby Goodwin
Louann - the Maid
Characters played by Ken Kane
Third Male Nurse
Characters played by Boyd Stockman
Alligator-Headed Paul
Characters played by Vince Townsend Jr.
Toby - the Butler
Characters played by Lee Warren
2nd Male Nurse