INTERSECTING CAST Anthony Dexter as Herron / Dr. Luis Vargas Richard Weber as Lt. Ray Makonnen / Dr. David Ruskin Francis X. Bushman as Sessom / Secretary General of the International Space Order
INTERSECTING CAST Michael Emmet as Cal Moulton / Maj. John Corcoran Tyler McVey as Doc Greyson / Dr. Alex Wyman Ross Sturlin as Giant Leech (uncredited) / The Creature
INTERSECTING CAST Michael Emmet as Cal Moulton / Maj. John Corcoran Tyler McVey as Doc Greyson / Dr. Alex Wyman Ross Sturlin as Giant Leech (uncredited) / The Creature