Rod Taylor

Self - (archive footage)

Self

Winston Churchill

Self

Doc

Mike Harper (archive footage) (uncredited)

Self

Daddy-O

General Sorenson

Coach

Billy Patrick

Ted Kitteridge

Self / Narrator / H.G. Welles

Gordon Cahill

Gen. Willoughby

Bill King

John Grail

Self

Supt. Bob McLaine

Commander W.P. Anderson

Tom Dempsey

Inspector Rory Lanahan

Lavender

Mr. Payatta

Pongo (voice) (archive footage)

Edward Adeane

Jack Bailey

Frank Agretti

'Black Jack' Bouvier