Calificación
Reparto

Stephen Murray
Boris Turganev

June Thorburn
Leila

Alan Wheatley
Paul Skelton

John Carson
Richard Colman

John Bown
John Baxter

Jack Watson
Captain Foster

Ernest Clark
Dr. Pembury

Peter Gilmore
Tom Masters

Marne Maitland
Dr. Asafu

Ellen Pollock
Dr. Morrell

Hugh Morton
Sir Gilbert Saunders

Basil Dignam
Richard Horton

Victor Beaumont
Petrov

Hamilton Dyce
Airport Controller