Trevor Fitzroy is a Marvel Comics supervillain, an enemy of the X-Men, in particular Bishop. Created by Jim Lee and Whilce Portacio, he first appeared in Uncanny X-Men #281 (October 1991).
Fitzroy hails from the same dystopian future as Bishop. A mutant criminal, he possesses the ability to absorb energy from human beings and use that energy to open time portals, which is how Bishop traveled to the present. He has since been featured as the main adversary in series featuring Bishop.
Read more about Trevor Fitzroy: Powers and Abilities