Kieron Moore

Cmdr. Michael Haydon

Lois Maxwell

Kim Hamilton

Donald Wolfit

Prof. Merrity

Bryan Forbes

Jimmy Wheeler

Jimmy Hanley

Larry Noble

Barry Keegan

Lefty

Walter Hudd

Professor Blandford

Donald Gray

Captain Ross

Thea Gregory

Barbara Noble

Shirley Lawrence

Ellen

Peter Neil

Tony

Ryck Rydon

Reporter

Ronan O'Casey

Reporter

Robert O'Neil

Reporter

Alan Gifford

Colonel Galloway

Paul Dickson