Dana Andrews

Dr. John Holden

Acting

Peggy Cummins

Joanna Harrington

Acting

Niall MacGinnis

Dr. Julian Karswell

Acting

Maurice Denham

Professor Henry Harrington

Acting

Athene Seyler

Mrs. Karswell

Acting

Liam Redmond

Professor Mark O'Brien

Acting

Reginald Beckwith

Mr. Meek

Acting

Ewan Roberts

Lloyd Williamson

Acting

Peter Elliott

Professor K.T. Kumar

Acting

Rosamund Greenwood

Mrs. Meek

Acting

Brian Wilde

Rand Hobart

Acting

Richard Leech

Inspector Mottrarn

Acting

Lloyd Lamble

Detective Simmons

Acting

Peter Hobbes

Superintendent

Acting

Charles Lloyd Pack

Chemist

Acting

John Salew

Librarian

Acting

Janet Barrow

Mrs. Hobart

Acting

Percy Herbert

Farmer

Acting

Lynn Tracy

Air Hostess

Acting

John Harvey

Hobart's Brother

Acting

Alan Beaton

Acting

Hyma Beckley

Acting

Ballard Berkeley

Acting

Ernest Blyth

Acting

Wallace Bosco

Acting

Daniel Brown

Acting

Jimmy Cains

Acting

George Curtis

Acting

Richard Duke

Acting

Shay Gorman

Acting

Laurence Hepworth

Acting

Walter Horsbrugh

Acting

Arthur Howell

Acting

Anthony John

Acting

Dan Lester

Acting

Leonard Llewellyn

Acting

Michael Peake

Acting

Paul Phillips

Acting

Anthony Richmond

Acting

Peggy Scott Sanders

Acting

Terry Sartain

Acting

Leonard Sharp

Acting

Bert Simms

Acting

Robert Brooks Turner

Acting