Douglas Ferguson
Claude Roberts
Dave Langdon
Dr. George Wainright
Dr. Niblock (as Jack Livingstone)
Reginald Dunstan
Karl le Barron
Jim Gordon
Patrick McCree
Dr. Howard
Capt. James Morrison
Sid Wilson
Aaron King - Art
Brian Trelawney
Rolf Rutherford
Stephen Pachmann (as Jack Livingstone)
Jack Livingston
