Lisa Hamilton

• Character Name: Lisa Hamilton
• Also known as: The Immortal Butterfly
• Other names: La Mariposa (her ring name)
• Martial art: Lucha libre. Lucha libre (free fight in Spanish) is a term used in Mexico, and other Spanish-speaking countries referring to a form of professional wrestling involving varied techniques and moves, characterized by rapid sequences of holds and moves, and masks. Lucha libre performers are known as "luchadores", or "luchadoras" if they are female.

Luchadores are traditionally agile and perform aerial maneuvers, executing high flying moves characteristic of lucha libre by utilizing the wrestling ring's ropes to catapult themselves towards their opponents, using intricate combinations in rapid-fire succession, and applying complex submission holds. Lucha libre also has several different weight classes, many catered to smaller agile fighters, who often make their debuts in their mid-teens. This system enables dynamic high-flying luchadores to develop years of experience by their mid-twenties.

• Place of birth: United States of America
• Nationality: American
• Birthday: July 20
• Age: 23
• Species: Human
• Gender: Female
• Height: 175 cm (5' 9")
• Weight: 53 kg (117 lbs.)
• Measurements: B92 W56 H86 cm (B36" W22" H34")
• Eye color: Dark pinkish-red
• Hair color: Dark Brown
• Current occupations: MIST scientist and luchadora
• Hobbies Surfing and scuba diving
• Favorite Foods: Apple and Cherry Pie
• Favorite Color: crimson red
• early life: Not much is known about Lisa's life before DOATEC, although it is well-known that she was high school friends with fellow wrestler Tina Armstrong and was a member of her school's volleyball team, which explains her great volleyball skills. At some point during her life, Lisa became one of the head scientists for DOATEC at DOATEC Germany, working for Victor Donovan during his genetic projects and becoming an luchadora at the wrestling contest along with Tina. Project Epsilon and the Second Tournament Lisa was known to be in charge of two DOATEC projects - Project Epsilon and the more successful Project Alpha - and was in charge of watching over the projects' test subjects, Hayate and his younger sister Kasumi, as well as Kasumi α, who was a prototype product of Project Alpha.

When Helena Douglas was hosting a public gathering on the Freedom Survivor to announce her take-over of DOATEC and the start of the second Dead or Alive World Combat Championship, Lisa attended the speech and found Ryu Hayabusa in the crowd. She asked him if he would be joining the tournament, but Hayabusa wasn't interested in talking to her so Lisa ended up insulting him for coming second in the first tournament. However, she apologized and they ended up going back to her cabin. While Lisa was bathing, Hayabusa overheard her talking about Kasumi to Donovan over the phone and he soon left to save her.

Around the time Lisa returned to DOATEC Germany, Hayabusa attacked the building and set it on fire. After Lisa ordered the evacuation procedures, she found that, during the chaos, Alpha had released Kasumi from her cell and she found out that her older brother was in the facility. Lisa became very annoyed with Alpha for telling Kasumi but, as Kasumi demanded to see her, the woman calmed quickly and drew out a handgun to keep Kasumi quiet. At that moment, Hayabusa broke into the building to take Kasumi to safety, letting Lisa and Alpha escape by helicopters, along with Hayate.

During the escape, the helicopter Lisa and Hayate were in experienced engine problems and crash-landed in the Black Forest. They both lived but Hayate somehow got separated from Lisa and was saved by Hitomi.

Despite what happened at DOATEC Germany, Lisa continued to work on Project Alpha and at times even had to protect the project from being discovered by Helena, which included threatening the woman's life.

At some point just before the fourth tournament, Lisa seemed to have a change of heart about the project and its wicked goals and planned to help to take down DOATEC as her persona "La Mariposa." During the early stages of the tournament, she engaged Tina Armstrong in a no-holds-barred wrestling match.

While the Mugen Tenshin clan attacked DOATEC's main headquarters, Lisa also confronted Hayate and told him that she was the one who manipulated him. He "thanks" her with a fight. She also revealed this to Helena Douglas during the tournament.

After the tournament, she went on to fight in a team wrestling match alongside Tina. It's possible, since DOATEC is no more, that this means that Lisa decided to follow a professional career as a luchadora.

After the fourth tournament, Lisa is seemingly working for Donovan with his new organization: MIST. He sends her to Tokyo to meet his client, but she is confronted by Hayabusa, who has overheard her conversation with Miyako on her cellphone and has confirmed MIST's existence. While Lisa tells him that it's her duty as a scientist to make new discoveries to change the world, Hayabusa replies that her discoveries have only brought suffering to him and his friends, and battles her afterwards. While escaping, Lisa accidentally bumps into Kokoro, who fights her with a demand for an apology. After the fight, Lisa asks Kokoro how Miyako is doing.

During the fifth tournament, Lisa makes contact with Miyako without Helena's knowledge, drawing suspicion. When they visit the oil rig, Helena demands to know why they are their without her knowledge. Lisa refuses to answer and steps up to fight Helena but she is defeated.

In the last chapter, there is some evidence that Lisa is a double agent working against Donovan like she did in the previous tournament. At the oil rig, Lisa finds Kasumi in the lab trying to free Hayate, who had been captured by Rig. Lisa realizes that Donovan is reactivating Project Epsilon and frees Hayate. When the four ninja fight Alpha-152, Hayabusa and the clone launch a ninpo at each other. The impact of their attacks creates a huge explosion, destroying the lab in the process. Lisa is seemingly trapped under the debris and her cry is heard; but she ultimately survived, although with severe enough injuries that she had to undergo rehabilitation for a time.

After surviving the explosion at the oil rig lab, Lisa continues investigating M.I.S.T., aiding DOATEC with critical information. Helena thanks her for her assistance, and suggests that DOATEC would like to work with Lisa regularly, but Lisa makes it clear that her loyalties lie with research, not DOATEC or Donovan, and bids Helena not to decide her motives for her.

Before the tournament, Lisa is introduced to Mila by Tina, who suggests they spar as part of Lisa's rehabilitation.

At the Hot Zone, Lisa begin to wonder about what has happened to the Phase 4 who attacked Bayman. Shortly after, she is approached by M.I.S.T scientist NiCO, who refers to herself as Lisa's "replacement." After defeating NiCO, Lisa warns her about trusting Donovan, but NiCO callously suggests that she will outperform Lisa in Donovan's service. Later, when Honoka is kidnapped by M.I.S.T., Lisa temporarily neutralizes Project Epsilon's effects on Hayate, offering him a window to take M.I.S.T. head on.

• Appearance: Lisa is a young dark skinned woman with a voluptuous and athletic build, who has short bob brunette hair, dark brown eyes, and full lips. Her luchadora costumes are very flamboyant and flashy, with added details such as shiny studs and colorful feathers. Her masks are all based around the shape of a butterfly, to match her persona as "The Butterfly."
• Attire: currently Lisa is wearing a Grey fur coat with a black fur collar, a black-and-gold vest worn under the coat, a pair of black leather pants, high heeled sandals, leather gloves with belt bracelets, silver hoop earrings, and a pair of sunglasses.
• Personality: her behavior changes depending on the outfit selected; If wearing wrestling attire as La Mariposa, she is very loud, and energetic in her introductions, yelling and jumping, obviously to work up her audience. Her winposes are quite suggestive, and she seems rather confident in her abilities. As Lisa, she is more reserved, asking before a match if the opponent really wants to fight that badly. Upon a victory, she blames her opponent for wanting to fight, and even says they're pretty terrible, while giving them a dissapointed and unsatisfied look. She seems quite prideful and just as confident in her abilities as her persona, as she asks her opponent if they really thought they'd win, while smiling sweetly whilst crossing her arms with an air of composure.