At the beginning of "SiN", the beautiful, promiscuous, charismatic, and ruthless Elexis Sinclaire is a genius-level biochemist and genetic engineer who is the CEO of a multi-billion-dollar, multinational pharmaceutical company called the SinTEK Industries. Elexis was born in 2006 and is 31-year-old by the events of the first game. Her biological mother Diane Kettle Sinclair abandoned her at an early age; during her upbringing she learnt from her devoted father, Dr. Thrall Sinclaire, and eventually took a position at SiNtek as a geneticist, bringing a breakthrough success to the company by discovering a way to stop the aging process through biotechnology. Rising through the corporate ranks, she eventually rose to supreme power after her father's mysterious disappearance. Elexis and SinTEK turned to illicit trades with their own brands of chemicals and drugs. Eventually her research led to the development of U4, SinTEK's most advanced chemical agent with mutagenetic properties. Ultimately, she secretly plans to overrun the world with her mutants and forcibly evolve humankind, bringing about a new world order under her domination. In a speech for SinTEK in the game, she claims she wants to merely save humanity from itself.