Rigel X alien criminal leader. The lead alien of the gang was an ashen-green-skinned alien with long, gray hair. His features were distinguished by a column of horizontal ridges bisecting his face. He had pale blue eyes and was dressed in a gray, padded suit with a sash-like belt.
The lead alien criminal was played by Jonathan Schmock, credited on-screen only as "Alien", and on the call sheets as "lead creepy alien". In the final draft script of "These Are the Voyages...", this character was typically referred to as "Lead Alien" and was initially described thus; "The Lead Alien has a sadistic streak coupled with a disingenuous charm."
