Clark Wessex

Clark Wessex is a human who appears repeatedly throughout the multiverse.
Clark 1 is the cause of the Earth 16a/earth 16b split.
Clark 3 is one of the dictators in Earth 3. He was framed for repeated murder, constant hacking, and rebellion by James Woden 3, a master hacker in the Resistance.
Clark 7 was a successful US Secretary of Defense. 
Clark 7-b27 is the militaristic leader of the U.S. in Earth 7-b27, who tried (and failed) to conquer the multiverse.