Vincent Ball

as Rex Hooper

as Chief Justice Napier

as Cardinal

as Leo Sullivan

as Mr. Dickson

as Priest

as Bishop of Sydney

as Cyril Williams

as Judge

as Dave the Spook

as Headmaster

as Stuart

as Captain Ritchie

as Lachlan McKinnon

as Lieutenant Commander Hubert Marsham

as Prime Minister

as Dr. Jeremy Lyall

as Col. Ian (Johnny) Hamilton

as Bailey Clark

as Bernard Wilcox

as Alex / Karen's lover

as Australian Soldier

as Carpenter

as Ship's Officer

as Pilot

as Bill Vernon

as Jenkins

as Cliff Wilton

as Higgins (uncredited)

as Dr. Blake

as Ransome

as Mike Billing

as Michaels

as Ken

as David Kyle

as Capt. Pat Foster

as Sgt Nesbitt

as Dr. John Pierre

as Bob Meredith

as George Storefield

as P.C. at Hospital (uncredited)

as Ben

as Mr. Lawson

as Second Sailor at Dance

as Flight Sergeant Watkins

as Johnson

as Digger

as John Drew

as Williams

as Ted Lintott

as Henley's Assistant

as Young Husband

as Jack Murnahan

as the first workman

as Hero in cinema sequence

as Monty Chesney

as Bill Weiner

as Dr. Cumberland

as Col. Foster

as Tom Knight

as Mathew

as Warren

as Sir Rupert Barrington

as Joseph Lyons (Prime Minister)

as Admiral Spencer / Major Greenwell

as Supt. James Kendall

as Joplin