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