

Grant

Cora

General Carter

Dr. Michaels

Col. Donald Reid

Capt. Bill Owens

Dr. Duval

Jan Benes

Communications Aide

Secret Service

Nurse

Technician
Wireless Operator

Military Policeman (uncredited)

Dr. Sawyer (Hypothermia technician) (uncredited)

Henry - Heart Monitoring (uncredited)

Young Scientist (uncredited)