as Dr. Howard
as Randolph Shaw
as Captain Drake
as Dr. George Wainright
as Claude Roberts
as Charles Lunkin
as Douglas Ferguson
as Aaron King - Art
as Capt. James Morrison
as Jim Gordon
as Dr. Niblock (as Jack Livingstone)
as Stephen Pachmann (as Jack Livingstone)
as Sid Wilson
as Patrick McCree
as Rolf Rutherford
as Brian Trelawney
as Reginald Dunstan
as Gene Stratton
as Jack Livingston
as Dave Langdon
