The Mekon (of Mekonta) was the arch-enemy of the British comic book hero Dan Dare, first appearing in 1950 in the Eagle comic strip Dan Dare, Pilot of the Future and created by Frank Hampson. Apart from Dan Dare himself, he is the only character to appear in every one of the numerous versions of the comic strip that appeared in the Eagle, 2000 AD and Virgincomics. In the 1950s, roughly every other story featured the Mekon.
The Mekon was the ruler of the Treens of northern Venus, although he was ousted from this position at the end of the first story and had no fixed base of operations. He was created by scientific experimentation, engineered for a very high intelligence. As such he had a swollen head containing his massive brain and atrophied body, and moved around on a levitating chair. He typically invented new superweapons in the pursuit of his goal, the domination of the universe for the purpose of scientific research; in some stories he also sought personal revenge on Dan Dare (he could sometimes be surprisingly impulsive for a being supposedly without emotion.)