Pangol

Pangol was the youngest Argolin on the sterile leisure planet Argolis. Ostensibly the son of Mena, he was in fact a clone created in the Argolins' Tachyon Recreation Generator. He wanted to lead Argolis into war and conquest, contrary to the ethics of his pacifist people who were the sole survivors of a short war which had irradiated their planet and made them sterile, and so tried to create a new army by duplicating himself in the TRG. However, he only ended up creating short-lived duplicates of the Fourth Doctor, who was hiding in the generator at the time. The TRG was then used to rejuvenate Pangol back to a baby. (TV: The Leisure Hive)