Dr. Abel is a non-playable character in the Tekken series. He's a mad scientist and a rival of Doctor Boskonovitch.
He isn't shown but he fired a beam from a satellite which destroyed Jack-2.
Abel reanimated Bryan Fury and sent him to to collect Boskonovitch's data. He needed it to end his main project - the Cyborg Army. He also appeared in Gun Jack's ending when he tried to kill Jack and Jane. He failed, because Jack generated a force field that protected him and Jane.