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