Real Name: Unrevealed
First Appearance: X-Force #119
Mutant Ability: Unclear, but has demonstrated superior strength and ability to change into a gaseous form.
While not officially a member of X-Force, Coach brought him into a splinter group of mutants as backup in case any of his members gone rogue. Or, at least failed to match up with The Coach's grand scheme.
Not much is known about him at this point, or even if he will be officially joining the team at a later time.