Originally formed by the first generation X-Men, X-Factor claimed to hunt mutants; in reality, they taught young mutants to control their powers. After Professor X returned from space, the members of X-Factor rejoined the X-Men and the team became a government unit led by Havok. The team's roster changed dramatically over time, including the addition of convicted criminals Mystique and Sabretooth. After Sabretooth's rampage and escape, X-Factor lay in ruins. Havok, who had "defected" to evil and formed the Brotherhood, revealed that he was undercover and when approached by the time-traveling X.U.E., agreed to lead them and Shard as the new X-Factor team. In the final moments of X-Factor, Polaris and Multiple Man rejoined the team, but Greystone and Havok were apparently killed when Greystone's time vehicle exploded.
Final Team Members
(#=Original Gov't Team)
 Havok#
|  Shard
|
 Fixx
|  Greystone
|
 Polaris#
|  Multiple Man#
|
Former Members
(*=Founding Member)
(#=Original Gov't Team)
 Archer
|  Forge
|  Wildchild
|
 Sabretooth
|  Mystique
|  Wolfsbane#
|
 Quicksilver#
|  Strong Guy#
| 
Val CooperGov't Liason # |
 Cyclops*
|  Jean Grey*
|  Beast*
|
 Archangel*
|  Iceman*
|
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