Rex Hooper

Chief Justice Napier

Cardinal

Leo Sullivan

Mr. Dickson

Priest

Bishop of Sydney

Judge

Cyril Williams

Headmaster

Dave the Spook

Stuart

Captain Ritchie

Lachlan McKinnon

Lieutenant Commander Hubert Marsham

Prime Minister

Dr. Jeremy Lyall

Col. Ian (Johnny) Hamilton

Bailey Clark

Alex / Karen's lover

Bernard Wilcox

Australian Soldier

Carpenter

Ship's Officer

Pilot

Bill Vernon

Jenkins

Cliff Wilton

Dr. Blake

Ransome

David Kyle

Michaels

Ken

Mike Billing

Capt. Pat Foster

Sgt Nesbitt

Dr. John Pierre

Bob Meredith

George Storefield

P.C. at Hospital (uncredited)

Second Sailor at Dance

Ben

Mr. Lawson

Johnson

Digger

Flight Sergeant Watkins

Williams

Ted Lintott

John Drew

Henley's Assistant

Young Husband

Jack Murnahan

the first workman

Hero in cinema sequence