Nathaniel Essex
Mister Sinister
London, England
Marauders (founder), Nasty Boys (founder); formerly Weapon X, Third Reich
Rebecca Essex (wife, deceased), Adam Stanislaus Essex (son, deceased), N2 (creation, deceased), Madelyne Pryor (creation, deceased), Claudine Renko (clone "daughter")
Geneticist, Criminal, biologist and mutant-supremacist