Charles Tingwell

Gallery Visitor

Winston Churchill

Bob Fisher

Lionel

Minister

Sam

Premier Graham Berry

John Conroy

Martin

Older David Collins

Edward Brooks

Cyril

Andreas Borg

Professor Alan Nordstrum

Old Snowy

Self

Farmer

Country Doctor

Dr Harry McKay

Lawrence Hammill

Old Stanley

Narrator (voice)

Governor

Hayes

Bert Clarke

Derek

Charles

Sandy Duncan

Muirhead

Dr. Rayment

Max Bell

Host

Stewart Simpson Sr.

Justice Masters

Tramways supervisor

Felix

Hughie Geddes

Narrator

Helen's Father

Uncle Charles

Cassidy

The Headmaster

International Space Control Commander (voice)

Lieutenant Dean / Carter (voice)

Lt. Col. Denny

Lieutenant Dean / Captain Brown / Agent 042 / Various Characters (voice)

Sid Mitchell

Jack Henderson

Dr. Baker

Harry Ferguson

Dr. Miller

Duncan Fraser

Dr. Hammond / Quiz Host

Doctor (uncredited)

Redwood

Dr. Fairburn

Father

Captain Beaver James

John Mitchell

Mr. Bennet

Mark Blaine

Jacko

David Soames

Captain Brown / Lieutenant Dean / Helicopter A42 Pilot (voice)

Doctor Fawn / Captain Brown / Airport Operator / Agent 042 (voice)

Macy (voice)

Harris (voice)

Marshall (voice)

Lieutenant Belmont (voice)

Doctor Fawn / Morgan (voice)

Space General Paterson (voice)

Captain Hassel (voice)

Fairfield (voice)

Base Controller (voice)

Carter (voice)

Lieutenant Dean (voice)

Helicopter A42 Pilot (voice)

Macey / 4th Policeman (voice)

Dr. Tony Grant / Angry Young Man / Public Relations Officer (voice)

Cpt. Dantor

Alan Kent

Johnson

Captain Jaffe

Captain Jaffe

Capt. Dantor

Mark Blaine

Major Dryden

Insp. Reg Lawson

Inspector Craddock

Inspector Craddock

Inspector Craddock

Albert Ringwood

Inspector Craddock

Dr. Neville

Conway

Capt. Braddock

Luke Parker

Alan Dawson

Jim Muldoon

Doctor Alan Dawson

Mr. Stevens

Peter Merriman

Lt. Harry Carstairs

Alan Blake

Matt

Narrator

John King

Sam Curzon

Terry Regan