Counterblast

Robert Beatty

as

Dr. Paul Rankin

Mervyn Johns

as

Dr. Bruckner, ...

Margaretta Sco...

as

Sister 'Johnni...

Nova Pilbeam

as

Tracy Heart

Sybilla Binder

as

Martha Lert

Marie Lohr

as

Mrs. Cole

Karl Stepanek

as

Professor Inman

Alan Wheatley

as

M. W. Kennedy