Elexis Sinclaire

Elexis Sinclaire is the titular main antagonist in SiN video game series.

History
At the beginning of SiN, Elexis Sinclaire is a talented biochemist and genetic engineer, CEO of a multi-billion dollar, multinational pharmaceutical company called SinTEK Industries. Elexis was born in 2006 and is 31 years old in the first game. Her biological mother, Diane Kettle Sinclair, abandoned her from an early age; during her upbringing, she learned from her loyal father, Dr. Sal Sinclair, and eventually became a geneticist at SinTEK.

The way biotechnology blocks the aging process has brought breakthroughs to the company. After her father's mysterious disappearance, she eventually emerged as a supreme power in the company's ranks. Elexis and SinTEK use their chemical and pharmaceutical brands to switch to illegal trading. However, her research developed SinTEK's most advanced chemical U4 with mutagenic properties.

Ultimately, she secretly planned to use her mutants to transcend the world, to advance humanity, and to bring a new world order under her rule. In SinTEK's game speech, she claimed that she only wanted to save humanity.

Other media
Elexis also appears in the 2000 anime original video animation, Sin: The Movie. In the film, her father is taken down by the government for his mad biological experiments that she continues (later it is revealed that she actually keeps her father as a huge mutated monster). However, she is also has a lover named Vincent, whom she also turns into a monster and then vivisects. At the end of the film, she falls from a skyrise building, presumably to her death.

Trivia

 * Elexis' plan is to turn her army of mutated creatures into the dominant lifeform on the planet, with her being the leader.