Wesker is the main recurring villain in the Resident Evil games. When first encountered in the original game he appears to be part of the S.T.A.R.S. team. As the story progresses it becomes apparent that he has his own agenda. By the end of the game he has been exposed the T-virus.
Conveniently, the effect that the T-virus has on Wesker involves a whole lot less brutally ugly physical mutation than it tends to have on everything else that it comes into contact with.
The overall effect on Wesker after Resident Evil is the usual suite of enhanced senses, stamina and agility plus his eyes take on a glowing and reptillian look. Also conveniently for Wesker, he always wears sunglasses, so even that mutation wasnt a big problem for him I suspect.
None of that matters in the context of this figure anyway as it depicts Wesker as a S.T.A.R.S. member during RE but before the viral exposure.
Wesker is a miniature from Recreational Conflict/Lead Bones, like all of the RE figures that I have posted recently, barring Ada Wong. Like all of the Resident Evil figures, Weskers paint job is basic and functional. The figure is very recognisable as the character from the games, which is the most important thing.