The Slender Thread
as Charlie
as Inga Dyson
as Det. Judd Ridley
as Dr. Joe Coburn
as Patrolman Bert Enyard (uncredited)
as Sgt. Harry Ward
as Mark Dyson
as Dr. Alden Van
as Patrolman Steve Peters
as Marian
as Chris Dyson
as Medical Technician
as Edna
as Al McCardle
as Mrs. Thomas
as Doctor Morris
as Arthur Foss