Stoker was the original leader of the Martian Freedom Fighters in the series. In the 2006 continuation, Stoker's role becomes more crucial after passing the position to his niece, Carbine due to being the creator of the Regenerator, the major prize behind the wars.
The Myth of Mars[]
After Stoker moved to Earth, he still left some evidence and ancient relics behind in there and Earth. He was able to protect the Regenerator and invent another on Earth, unfortunately he retired, and he and his species gradually died off.