Casts
Bill Travers
as Joe Ryan
William Sylvester
as Sam Slade
Christopher Rhodes
as McCartin
Joseph O'Conor
as Prof. Hendricks
Bruce Seton
as Prof. Flaherty
Martin Benson
as Dorkin
Maurice Kaufmann
as Radio Reporter
Basil Dignam
as Admiral Brooks
Tommy Duggan
as First Naval Officer
Howard Lang
as First Colonel
