Shego is a villainess who works for Dr. Drakken as his "sidekick". Since her main duty to Drakken entails stealing things on his request and protecting him from harm, she frequently engages Team Possible in battle.
Shego has four brothers, Hego , Mego , and the Wego Twins. When Shego and her brothers were young, they were struck by a rainbow "comet" while in their family treehouse, granting them superpowers. Shortly thereafter, they formed Team Go , a crime-fighting family in the mold of a classic superhero team. Together, they took on the responsibility of defending Go City from the forces of evil. However, according to Hego, the more Shego fought villainy, the more she liked it. Shego herself mentioned that her main reason for leaving was that she became fed up with her brothers' incompetence so it could have been one reason or the other, or more likely, both. After she quit the team, she found employment with Dr. Drakken because he supposedly pays well. Between the time that Shego left Team Go and her first encounter with Kim Possible, she had eleven countries swear out warrants for her arrest. It was revealed in " Stop Team Go " that Shego was a college graduate with an unspecified degree in Child Development, allowing her to become a substitute teacher in Middleton High after she turned good due to Jack Hench's Attitudinator, a device that makes good guys evil and vice versa.
Shego is a fictional character from Disney's animated television series Kim Possible , voiced by Nicole Sullivan. The character, ever since her first appearance in the pilot episode, " Crush "  appears as Dr. Drakken's sidekick , though in some episodes acts as a mercenary for other villains. She made her live-action debut appearance in the film Kim Possible , who is portrayed by Taylor Ortega. Shego is one of the most mature characters in the franchise; unlike most other Kim Possible villains, she is not afflicted with megalomania or narcissism. However, despite her generally rational and sane demeanor, she is frequently impatient and quick to anger, especially when she feels that someone is being obnoxious or stupid;  her brother, Hego, once summed her up as a "cranky smart-mouth, prone to excessive violence. As a villain , Shego is dedicated to her work, but often appears unmotivated and unambitious, dividing her free time between lounging in Drakken's lair reading villain magazines, filing her clawed gloves, and visiting spa resorts. For the most part, she does not initiate any schemes of her own, instead preferring to assist others as an enforcer or infiltrator.
I know this from experience. Be a good influence. Never ask vague questions and give her definite options instead. Mormonism is a religion that's as manipulative as it is comforting. Fall in love, learn, make some mistakes, laugh, serve other people, reproduce, and let the whole story start again. But life is long and eternal and all righteous people will choose the right at the end.