Bolded names in the most recent iteration published are the current team members.
Deceased: Confirmed by Jean Grey in issue #98 after being hit by the Ultimatum Wave.
Deceased: One head was shot off by William Stryker and then they both died of blood loss.
Colossus established this branch of the X-Men when its members have been taking the mutant-enhancing drug Banshee.
Each of the members of Alpha Flight have their powers enhanced by the mutant-enhancement drug Banshee.