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