Peter Sumner

as Dr Dickenson

as Professor Ed Woodman

as Lt. Pol Treidum

as Captain Gardiner

as Errol Baumann

as Carl Sexton

as Buzz

as Jonathan Bromley

as Grant's Father

as Phil Buchanan

as Harry Grant

as Cooper

as Ben Thompson

as Bill Hayden

as John Meadows

as Tewson

as Reg

as Dowie Steed

as Lt. Pol Treidum (uncredited)

as Dixie Hart

as Stanley Phillips