X-Factor, Alpha Flight, Gamma Flight I, II, Omega Flight, Core Alpha, Department H, The Breed, Weapon X Program III
History
Kyle Gibney was kicked out of home at an early age when his parents discovered he was a mutant. Taken in by the Secret Empire, he was subjected to experiments in their attempt to create the perfect killing machine and was injected with DNA from the assassin Wyre which caused his beastial side to emerge.
After Wyre rebelled and destroyed the base, Kyle was discovered in the wreckage by the Canadian government and taken to Department H where he was placed into the Gamma Flight training team. When the government cut funding to the team he disappeared, and was later recruited by Delphine Courtney to join Omega Flight. After their attack on Alpha Flight, he was captured and imprisoned. He eventually escaped and went on a killing spree. He almost killed Heather Hudson but was stopped by Wolverine.
Kyle was later pardoned for his activities and joined the second Gamma Flight team, eventually joining Alpha Flight. When Alpha was disbanded he slowly slipped into a berserk rage once more and savagely attacked Pathway. Teleported away by Nemesis, his whereabouts were unknown until he returned as Weapon Omega, seemingly cured of his rages. He eventually rejoined Alpha Flight as Wildheart. Offered a place in X-Factor by Val Cooper, he accepted and has served with them since. It seems he has fallen for Shard, even though she is a living hologram.