Robert Urich

as Dr. William Nugent

Maureen Reagan

as Dr. Christine Scofield

Jack Hogan

as Dr. Edward Grey

Jed Allan

as Dick Rawdon

Alfred Ryder

as Dr. Al Marsdan

Harry Townes

as Dr. Burkhart

Lillian Lehman

as Resident Doctor

Corinne Camacho

as Ruth Conoyer

Anne Whitfield

as Mrs. Vanier

Jackie Coogan

as Roger

David Lewis

as Dave

Tom Scott

as Leonard Pitt

Chris Anders

as Erich

Priscilla Morrill

as Mrs. Stinnett

Walter Stocker

as Ernest Lathrop