Lisa Trevor

Lisa Trevor is a character from the Nintendo GameCube remake of the original Resident Evil. Ever since 1967, Lisa has been forced to undergo a plethora of heinous biological experiments conducted by the nefarious Umbrella Corporation. The side-effects of the experiments have mutated Lisa into a monstrous abomination.

Background
Lisa was born to Jessica and George Trevor in 1953. Several years after her birth, Ozwell E. Spencer hired George to design a special mansion complex for him in the Arklay Mountains, which would also host a secret underground laboratory. Spencer eventually became paranoid that George would someday leak the mansion's secrets to the public, and ordered his henchmen to apprehend and execute George. Instead of being done away with immediately, George was thrown into a secret compartment of the mansion, and endured a subtle and lonely demise.

While George was writhing in his eternal resting place, Lisa and Jessica were kidnapped by Spencer’s henchman, and used as human test subjects for the Progenitor virus. On November 10, 1967, Lisa was administered the “B-Type” variation of the Progenitor virus, while Jessica was administered the “A-Type” variation. Jessica’s bodily systems were able to fight off the virus, while Lisa body immediately began to exhibit signs of mutation. Over a period of time, both Lisa’s mental and physical state were grotesquely altered.

Lisa’s mental deterioration culminated when she began to develop a morbid obsession to remain with her mother. Ultimately, Lisa killed her mother by mutilating her face. Thinking her mother was an impostor, Lisa began to aimlessly hope for her mother’s return, and vowing to return her face upon their reunion. For safe keeping, Lisa attached her mother’s face to her own, wearing it like a mask.

Even after her mother’s death, Lisa continued to serve as a test subject for even more biological experiments. Unlike her fellow, more unfortunate test subjects, Lisa was able to survive all of their tests, regardless of the potency of the implanted virus or parasite. This uncanny immunity earned the attention of Umbrella Corporation researchers, Albert Wesker and William Birkin, who injected their formidable guinea pig with a specimen of the Nemesis parasite. To their astonishment, Lisa not only overcame the specimen, but also managed to absorb it and adapt its powers into her system. Ultimately, this was a major breakthrough for the Umbrella Corporation, that would later go on to play a pivotal role in the engineering of the G-Virus.

After the Nemesis virus was extracted from Lisa, the Umbrella Corporation lost interest in her. As time passed, Lisa’s mutations and loneliness lead her to become increasingly violent. On one occasion, she brutally assaulted and killed three lab researchers. As Lisa was now seen a vestigial threat, Umbrella Corporation officials called for Lisa’s destruction. Sometime in 1995, Lisa was supposedly slain in an undisclosed area of Spencer’s estate. However, little did the Umbrella Corporation realize, the myriad of experiments conducted on Lisa had left her impervious to almost all forms of physical battery. Lisa would go on lurk through the catacombs of Spencer’s estate, secretly claiming residency in a neglected cabin. On an unspecified date, Lisa was able to find the tomb of her mother, conveniently located under the Spencer Mansion. While she was able to recognize the scent of her mother, she was unable to open her stone coffin and "reunite" with her mother.

During the 1998 “Arklay Mountains Incident”, various members of Raccoon City’s Special Tactics And Rescue Service (S.T.A.R.S.) encountered Lisa while seeking refuge in Spencer’s mansion. After either Jill Valentine or Chris Redfield (depending on the chosen scenario) solved the puzzle of Trevors' crypt, Jessica Trevor's skeleton was finally exposed. Lisa suddenly became emotionally crazed, and grabbed her mother's skull from the casket. After a bizarre display of closure, Lisa jumped into a nearby abyss. Although Lisa is presumed dead, it is possible she may have survived the fall, explosion of the mansion, and nuclear bombardment of the Arklay Region due to her “invincibility”.

Appearance
As aforementioned, Lisa’s mutations have hideously distorted her physical build. Lisa’s hideous face is partially masked by collections of flesh from her victim. During some cut scenes, one may be able to notice one of Lisa’s uncanny eyes through a small hole in her mask. Her oversized arms and hunchback resembles the body build of an orangutan. Furthermore, Lisa is draped in a tattered hospital gown, and chained to a wooden mechanism, which acts as a pair of handcuffs. Nevertheless, Lisa is able to deal considerable amounts of damage to her victims, and should not be confronted directly, as no weapons can harm her.

While in various parts of Spencer’s estate, one may hear the harrowing wails and cries of Lisa. This characteristic suggests that Lisa is incapable of utilizing a higher level of thought process, and therefore conforms to a more animalistic nature. However, it should be noted that Lisa was able to start a fire in order to warm herself, as well as write a few crude entries in her journal.

Trivia

 * Lisa did not appear in the original Resident Evil; she was added to the 2002 remake in order to provide additional support to the background story of the game.
 * Lisa's improvised living space bares a strong resemblance to Larry Drake's hideout in the 2001 film], Dark Asylum. Furthermore, the opening sequence of the movie is very similar to the cut scene where one first hears Lisa in the mansion's main hall.