On screen
Cast
28 credited performers
Peter Breck
Johnny Barrett
Constance Towers
Cathy
Gene Evans
Boden
James Best
Stuart
Hari Rhodes
Trent
Larry Tucker
Pagliacci
Paul Dubov
Dr. Menkin
Chuck Roberson
Wilkes
Neyle Morrow
Psycho
Artwork unavailable
John Matthews
Dr. Cristo
Bill Zuckert
Swanee
Artwork unavailable
John Craig
Lloyd
Philip Ahn
Dr. Fong
Frank Gerstle
Police Lieutenant
Artwork unavailable
Rachel Romen
Character not listed
Barbara Perry
Character not listed
Artwork unavailable
Marlene Manners
Character not listed
Artwork unavailable
Linda Randolph
Character not listed
Artwork unavailable
Lucille Curtis
Character not listed
Artwork unavailable
Jeanette Dana
Character not listed
Marie Devereux
Character not listed
Artwork unavailable
Karen Conrad
Character not listed
Artwork unavailable
Allison Daniell
Character not listed
Chuck Hicks
Character not listed
Wally Campo
Character not listed
Artwork unavailable
Ray Baxter
Character not listed
Linda Barrett
Character not listed
Artwork unavailable
Harry Fleer
Character not listed