The Hellfire Knights are used as security for the Inner Circle of the Hellfire Club.
They were tasked to take down the X-Men and failed, but their failure was quickly forgotten with the intervention of the White Queen who defeated the X-Men using her powerful telepathic powers.
Later, they were tasked to capture the mutant artist Dazzler, as she was wanted by the X-Men too, but were beaten by her and the time-travelling Iron Man.
