"I killed your parents. You must be burning with rage."

Jeane (ジーン) is a fictional character in the 2007 video game No More Heroes and the main antagonist. She is a 23-year-old American assassin and Travis Touchdown's half-sister; her surname is unknown as well as being the first-ranked assassin after killing Dark Star. (Evident by the fact Sylvia does not interrupt their fight unlike the incident with Letz Shake earlier.) She hated Travis and his family for being stuck with their father who sexually molested her (revealed in a fast-forwarded cutscene slowed down) after causing her mother to commit suicide. She resorted to prostitution to fund her martial art training in an attempt to seek revenge. She killed Travis' parents in front of him and destroyed his home.

She kills Dark Star, the highest-ranked assassin in the United Assassins Association, with a single blow from behind during the final stages of the UAA competition. After explaining herself to Travis, she engages him in a final battle using her mixed martial arts skills. After an intense fight, Jeane comes very close in killing Travis after she lands a punch that partially goes through his chest, but Travis eventually kills her with Shinobu's help. Curiously, in the game's true ending, it is shown that Sylvia Christel has a young daughter, also named Jeane.

Her relationship with Travis and their "father" Dark Star may be another parody to the "Star Wars" series, with Jeane assuming the role of Princess Leia. Same with the revelation of them being related being similar to the revelation in "Return of the Jedi".

Travis possibly named his pet cat and daughter after his half-sister Jeane subconsciously even with his memory being wiped by his childhood abductors.

Jeane is voiced by Kari Wahlgren in the English version and Mamiko Noto in the Japanese version.

During Travis' encounter with Jeane, Travis demands she tell him what justified murdering his family, to which she replies that her story is too horrible and that, "It would only jack up the age rating of this game even further." Travis and Jeane come to the conclusion that Jeane will tell Travis what he wants to know, but on the condition that she literally "fast-forwards" her confessions, during which the player make only minimal sense of what Jeane is saying. The following is transcribed from a slowed-down version of her story, which can also be viewed on YouTube.

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There are several Jeane trading cards in the Design Materials set. These include Jeane"_Design">"Jeane" Design, "Jeane" Expressions and Jeane.