The title character in this four-chapter
Doctor Who adventure is the last survivor of the Zolfa-Thuran civilization. While on a diplomatic mission to the cult-dominated planet Tigella, the Doctor (
Tom Baker) is intercepted by Meglos, who has hatched a scheme to access Tigella's power source. Jacqueline Hill, who'd played the Doctor's traveling companion Barbara Wright in the earliest episodes, guest stars as Lexa, leader of the Deon race. Written by John Flanagan and Andrew McCullough, "Meglos, Episode 1" first aired on September 27, 1980. ~ Hal Erickson, All Movie Guide