Bo Hopkins as Carl

Dianne Hull as Kelly McIntyre

Patti D'Arbanville as Cathy

Sharon Farrell as Melanie

Robert Englund as Benny

Anthony James as Derrick

Julie Adams as Nurse Hannelord

Mel Ferrer as Dr. Sidney Coleman

John David Carson as Ronnie Denton

Earl Boen as Phil

Alice Nunn as Emma

Howard Avedis as Occupational Therapist

Michael Berryman as Mental Patient

Milt Kogan as Dr. Shaw

Marlene Schmidt as Night Nurse

Tracey Walter as Mental Patient

Betty Kean as Sophy

Cathey Paine as Lois

Udana Power as Nurse Whelan

Gregory J. Barnett as Deputy Sheriff

Chuck Boyd as Douglas Crawford

Bob Herron as Sheriff

M.G. Kelly as Hal

Barbara Ellen Lyle as Francine

Marie Marq as Jinny

Suzanne Niles as Doreen

Grant Owens as Jerry

Marlene Schmidt as Night Nurse

Lee Stein as Lou

Bruce Stidham as Dr. Morgan

Duane Tucker as Psych Tech

Maggie Appel as Mental Patient

Mary Ellen O'Neill as Mental Patient

Alan Sands as Mental Patient