Cable is Nathan Summers, the son of Scott Summers (Cyclops) and Madelyne Pryor (AKA the Goblyn Queen, a clone of Jean Grey produced by Mr. Sinister). Infected by a techno-organic virus by Apocalypse as a baby, Cable must use his telekinetic powers to keep the virus from ravaging his body. Thus in one of Cable's win poses, his arm succumbs to the virus and deforms.
Some of his special moves are : Gun Fire, Viper Beam, Running Fist, Psi-Charge, Electrap, and Scimitar Uppercut. Cables Hyper Combos are Hyper Viper and Time Flip. He got some Assist Moves too
A LP Viper Beam LP Viper Beam Hyper Viper
B HP Scimitar HP Scimitar Hyper Viper
Y LK Electrap LK Crackdown Hyper Viper
His B (anti-air) assist is considered his best assist, mostly because of his ability to use it as a counter and cancel into Hyper Viper. The A (projectile) assist can be used when more of a ground game is needed, and the Y (variable) assist can be used as a surprise assist.