aforementioned war criminal got a good look at team leader Jonas Blane. When the criminal escaped from UN custody, he tracked Blane back to Fort Griffith, the Alpha Team's headquarters. When Alpha Team went off post to celebrate the marriage of Unit commander Colonel Tom Ryan, the war criminal struck, killing a few workers and injuring Charlotte Ryan and Sergeant Major Blane. During Season 2, Grey helped prevent the spread of weaponized smallpox throughout the world by members of al-Qaeda. He was also responsible for helping Sergeant Major Blane's wife, Molly, train a young Unit support staffer in offensive driving in order to qualify him for a job with Blackthorne Security, a private military company. Along with Hector Williams, he instructed a SWAT unit in advanced closed quarters battle tactics, and designed the deliberate assault plan for the Braydon School takedown in "In Loco Parentis". He along with Mack Gerhardt, served as a spotter, for Bob Brown and Hector Williams, who were snipers, when they engaged vehicles and personnel at 2320 m during the "Dark of the Moon" episode. When the Unit was on lockdown pending an Article 32 hearing, Grey decided to escape Federal uniform and civilian custody by going AWOL. His whereabouts were unknown until the Season 3 premiere, where it turns out he linked up with Jonas in Panama City, Panama. In the episode "Five Brothers" Grey was severely wounded by a gunshot but survived until the team was extracted by Marines. Though he survived, his best friend Hector Williams was killed when trying to aid him. In the episode "Binary Explosion" it was revealed that Grey had past history with the Hispanic gang "Byz-Lats" and that his late mother had been the last of his only real family. In season 4 he meets Joss Morgan and falls in love with her. Though it becomes hard for the two of them to marry because of her Russian relations, he and Joss do get married in the series finale. He customarily uses a SIG Sauer 9mm pistol, the same weapon as Hector. His fighting style is based on the Israeli martial art of Krav Maga, a trait based on actor Michael Irby who is a student of it in real life. As a hobby Grey writes poetry. According to Grey his old roommate Hector Williams considered him 'cheap'. In the course of the series he kills at least