[2] Originally a supervillain to Iron Man, Ghost has since become an anti-hero figure after becoming a member of the Thunderbolts during the events of "Dark Reign" and "Heroic Age".
The Ghost is an anti-capitalist saboteur who seeks to destroy various political and economic institutions he views as oppressive, apparently being most interested in those dealing with advanced technology and surveillance.
He has, at times, hired his services out to corporations and other organizations, such as Norman Osborn's Thunderbolts, that wish to destroy rival groups, but invariably plans to turn on his own employers and topple them as well.
Impressing the board of directors with his technological prowess and genius intellect, he quickly rose up the ranks and assumed the company's flagship project for which he developed a revolutionary processor that could physically change in reaction to its environment, becoming intangible before it can overheat.
Exhausted after months of work, the socially introverted programmer decided to leave on vacation, conflicting with the board of directors' expectations for an ahead-of-schedule launch that could increase their profit margins significantly.
Happier and more productive than ever, he now found every single aspect of his life tied to the company, all part of a well-oiled machine, until his lover died in an explosion at her apartment.
Depressed over her death and unable to cope with its apparent randomness, he sought solace by immersing his consciousness into the data networks he created by wiring his own flesh with his flux-state processors.
In this state, he pieced memories and hidden fragments of data together to realize his dead lover had been hired by the board to seduce him, keeping him happy and available to the company's every demand, and later murdered for blackmailing them for more money.
When Pax and the other executives at Roxxon heard that the Ghost had gone rogue, they feared his actions would make the company look bad, so they called in Spymaster to take care of him.
[7] The shrewd industrialist intended to sell the company, Electronica Fabbrizi, to Tony Stark, ridding him of a dangerous enemy and a useless asset, as well as sticking a business rival with a nasty problem.
However, after Tony Stark discovered the true ownership of the floundering company, a compromise was reached: Hammer's forces and Iron Man would cooperate in taking out the Ghost.
However, when the mysterious villain confronted Hammer, it was revealed the ruthless business man had defenses developed against the Ghost's intangibility powers, and made his own escape, leaving his assailant trapped.
[9] Ghost was next hired by the Kingpin to steal the new Roxxon process to create synthetic vibranium, and battled Spider-Man and the Black Panther.
Tony Stark, who at the time was undercover as a common employee at one of the companies that went under, managed to track down the source of the attacks: the "Advanced Corp", a cover for A.I.M.
[12] Later still, having apparently escaped, the Ghost (in a new, more streamlined outfit) was employed by the third Spymaster to help free the Living Laser, who was "held captive" by Stark Industries at the time.
[15] Ghost helps Osborn take control of Air Force One with the Goblin (actually new Thunderbolts member Headsman), Doc Samson, and the new president aboard.
[18] Ghost later reveals to the Black Widow (actually Natasha Romanoff in disguise) that when Osborn is king of the corporate world, he'll act as "a virus" to bring it down from the inside.
[19] Widow was eventually exposed as Natalia Romanova, who was in fact Nick Fury's undercover agent, and who was attempting to make sure Songbird stayed alive.
Aware of the emergency, Quicksilver crossed the Atlantic Ocean and crushed Mister X (who wielded the weapon at the time) in combat, retrieving it.
Devices in the battle-suit enable him to hack and reprogram all manner of electronic systems in his vicinity as well as intercept, tamper with, or silence electromagnetic signals.
The Ghost also invented guns that fire bursts of electricity or concussive force blasts and employs a large arsenal of high-tech weaponry, including incendiary devices, self-targeting Anson grenades and sound-activated bombs.