William Schallert

as Appa Ali Apsa (voice)

as Secretary of Defense

as Self

as Dean Kramer

as Wallace

as Dr. Greenbush

as Cade

as Horn

as Professor Mills

as Retired Man

as Prof. Quigley

as Tanner

as Bill Horton

as CIA Director Grauber

as Professor Quigley

as Mr. Perkins

as Abel Esterlake

as Dr. Fraker

as Judge Herman Spicer

as Mayor Schubert

as Harry

as Thomas G. Lamphier Jr.

as George - Bank Vice President (uncredited)

as Jim Shaney

as Weatherman

as Ted Baker

as Court Clerk

as Doctor Arthur Bramson

as Reporter

as Marshal Scott Hood

as Missionary

as Private Livingston

as Ben

as Johnston - a Reporter

as Asst. Dist. Atty. Andy Tucker

as Ambulance Attendant

as Engle

as Reporter

as Ens. Longfellow

as Union Soldier (uncredited)

as Dr. Mears