Team Galactic (Japanese: ギンガ団Ginga-dan, literally Galaxy Gang) is a villainous team based in Sinnoh. The team was founded and led by Cyrus.
While asleep following her recovery from a coma, a bunch of uniformed men stole Alexis's body from her home in Sinnoh. Knowing all about the story of Team Plasma and Alexis, Team Galactic Leader Cyrus began to fill Alexis's head with fake stories telling her she had loyalty to Team Galactic, and that they were the company she had been with for a long period of time. Alexis, not knowing otherwise, believed this and became a senior member of Team Galactic. For the next few years, Alexis caused havoc in the Sinnoh region; and ultimately saw her demise as a Team Galactic member when she was defeated by Ash, and two friends, Dawn and Brock. Alexis found that she was the sister of Dawn, and that she was kidnapped by Team Galactic several years before. This revelation resulted in her finding that Cyrus had lied to her, and managed to defeat him with the help of Ash, where he was sent to the Distortion World. Alexis then cut ties with Team Galactic, deciding to start her own Pokémon Trainer Journey alone. Team Galactic seemingly went into hiding following this event.
Saturn • Mars • Jupiter • Charon
Cyrus is Team Galactic's former leader. As the boss of Team Galactic, Cyrus is the nihilistic, god-complexed main antagonist of Sinnoh, with the ultimate goal of summoning Dialga and Palkia in order to destroy the universe so that he may start it again as its god. Born and raised in Sunyshore City, he was known to be a good, albeit asocial, student, and so preferred the company of machines over humans and Pokémon. Despite being such a good student, however, he did not live up to his parents' expectations, and so felt rejected. Sometime after this, he decided emotions were the source of all strife in the world, and that only the elimination of emotions, along with spirit, was the only cure to fighting in the world, which lead to his plan and actions during the storyline in Sinnoh. His grandfather, who lives on Route 228, regrets not taking him in during his time of need.
Saturn is one of Team Galactic's four Commanders
Mars is one of Team Galactic's four Commanders.
Jupiter is one of Team Galactic's four Commanders.
Charon is one of Team Galactic's four Commanders.
Grunts are the conglomerate group of low-leveled members of Team Galactic. They were present in the battles for Team Galactic at every event. Similar to Team Rocket, they were never made aware of the goals of Team Galactic, being kept in the dark by their leader.