Peter Breck as Johnny Barrett

Constance Towers as Cathy

Gene Evans as Boden

James Best as Stuart

Hari Rhodes as Trent

Larry Tucker as Pagliacci

Paul Dubov as Dr. Menkin

Chuck Roberson as Wilkes

Neyle Morrow as Psycho

John Matthews as Dr. Cristo

Bill Zuckert as Swanee

John Craig as Lloyd

Philip Ahn as Dr. Fong

Frank Gerstle as Police Lieutenant

Rachel Romen as

Barbara Perry as

Marlene Manners as

Linda Randolph as

Lucille Curtis as

Jeanette Dana as

Marie Devereux as

Karen Conrad as

Allison Daniell as

Chuck Hicks as

Wally Campo as

Ray Baxter as

Linda Barrett as

Harry Fleer as