Trevor Fitzroy is a supervillain appearing in American comic books published by Marvel Comics. The character is usually depicted as an enemy of the X-Men, in particular Bishop. Created by Jim Lee and Whilce Portacio, he first appeared in The Uncanny X-Men #281.

The Hellfire Club is a fictional society appearing in American comic books published by Marvel Comics. The Hellfire Club often comes into confrontation with the X-Men mutant superhero team. Although the Club appears to merely be an international social club for wealthy elites, its clandestine Inner Circle seeks to influence world events and advance their agenda.