John Harrison
Rupert Gould
Elizabeth Harrison
Muriel Gould
Laura Gurney
Dodo Gould
John Jefferies
Sir Frank Dyson
Lieutenant (uncredited)
Edmund Burke
Army Doctor
Rear Admiral
Admiral Clowdisley
Captain Ainsley
Nevil Maskelyne
Staff Nurse
Dr. Bliss
Nurse
William Harrison
Minister for the Navy
Lord Sandwich
Lord Morton
Sir Charles Pelham
Young William
