as Jason (voice) (uncredited)
as Third Officer Charles Groves
as Officer (line of men in sea) (uncredited)
as British Sergeant
as Rupert
as Dutch Lieutenant
as Crewman (uncredited)
as 1st Reporter
as Artist (uncredited)
as Dr. Kenneth McColl
as Tommy Dykes
as Alvarez - racer
as Flight Lieutenant J. F. Leggo, D.F.C.
as Commentator
as Peter
as Narrator
as Self - Commentator
as Frank Mason
as Lieutenant John Wynham
as Dr. Peter Brady / Invisible Man (voice) (uncredited)
as Nick
