Nina Williams

• Character name: Nina Williams
• Also known as: Silent Assassin
• Fighting Style: Assassination Arts based on Aikido and Koppojutsu
• Origin: Ireland
• Height: 168 cm (5′6″)
• Weight: 56 kg (123 lbs)
• Eyes: Blue
• Hair: Blonde
• Likes: Tom from "Tom & Jerry" cartoons, Tea with milk, Scotch, Doing her job
• Dislikes: Her younger sister Anna Williams, Her son Steve, whom she considers an annoyance
• Species: Human
• Gender: Female
• Age: 44 (physically 29)
• Date of birth: July 25th
• Occupation: Assassin
• Hobby: Traveling
• Family: Richard Williams (Father), Mrs. Williams (Mother), Anna Williams (younger sister), Steve Fox (Son)
• About: Nina is a cold-blooded Irish assassin. Nina has a lethal fighting style, consisting of throws, grapples, and holds. She has an infamous rivalry with her younger sister, Anna Williams.
• Biography: Nina and her younger sister are from a family of assassins hailing from the Republic of Ireland. Nina was trained in assassination arts by her father and in aikido by her mother. Anna was trained alongside Nina, and the two developed a deadly rivalry, often attempting to humiliate or kill one another.

Nina was contracted to kill Heihachi Mishima at the time of the first King of Iron Fist Tournament. She did not succeed in this task.

Two years later, Nina's father was on his deathbed. He pleaded for Nina and Anna to make amends before his death, but Nina found herself unable to comply with his wishes. She was soon contracted to kill the Mishima Zaibatsu's leader, Kazuya Mishima, at The King of Iron Fist Tournament 2. She entered the tournament not only to complete the job, but also with the intention of settling things with Anna. Nina's grudge with Anna kept her from completing her hit on Kazuya, and both sisters were captured by Kazuya's forces and used as test subjects in Doctor Bosconovitch's cold sleep experiment.

Two years later, Nina's father was on his deathbed. He pleaded for Nina and Anna to make amends before his death, but Nina found herself unable to comply with his wishes. She was soon contracted to kill the Mishima Zaibatsu's leader, Kazuya Mishima, at The King of Iron Fist Tournament 2. She entered the tournament not only to complete the job, but also with the intention of settling things with Anna. Nina's grudge with Anna kept her from completing her hit on Kazuya, and both sisters were captured by Kazuya's forces and used as test subjects in Doctor Bosconovitch's cold sleep experiment.

Nina was in cryosleep for 15 years. When Ogre was awoken by actions of the Mishima Zaibatsu, its unleashed spirit stirred Nina from her sleep. Ogre assumed control of Nina's mind and commanded her to kill Jin Kazama, the son of Kazuya and grandson of Heihachi, her former targets. Nina entered the King of Iron Fist Tournament 3 to carry out the task.

She was unsuccessful in killing Jin. Free of Ogre's control but afflicted with amnesia, Nina fell back into contract killing. She did not even remember Anna or their rivalry. One day, she accepted a contract from The Syndicate, a mafia organization. The target was Steve Fox, a world boxing champion. Nina learned that her genetic material had been used to create Steve for as part of a Zaibatsu experiment program whilst she was still in cryosleep; however, she was unmoved, and intended to see the contract through regardless. Nina entered The King of Iron Fist Tournament 4, only for Lei Wulong, an international police officer, to bust The Syndicate, leaving her without an employer.

Nina placed her focus on discovering her forgotten past. She learned of Anna and, believing a meeting with her might help her regain her memories, arranged to see her. As soon as she saw Anna's face, Nina's memories returned, and they immediately entered into a shootout that went on for several days. When it ended in a stalemate, they agreed to settle things once and for all at The King of Iron Fist Tournament 5. Nina defeated Anna at the tournament, both in a fight and in popularity rankings.

Having finally defeated her sister, Nina found herself without an immediate goal - however, she was soon hired by Jin Kazama, the Mishima Zaibatsu's new leader, as a member of his special forces. Though the Mishima Zaibatsu were waging war seemingly without clear reason, Nina was not selective about her clients, and joined the Tekken Force in engaging in covert demolition operations across the globe. Nina also acted as Jin's personal bodyguard, and was aware of Jin's larger plan - to awaken an ancient demon called Azazel and destroy it. After Jin's clash with Azazel in the desert - in which Jin went missing - Nina appeared and briefly spoke with Lars Alexandersson, wondering whether Jin had really wanted the fight to end the way it did.

Nina returned to the now-leaderless Mishima Zaibatsu. She and Tekken Force attempted to locate Jin Kazama, but were unsuccessful. Heihachi Mishima stormed the Mishima Zaibatsu, intending to reclaim it in Jin's absence. Nina initially sent Tekken Force out to try and thwart his advancement, and even confronted him herself, but yielded after she was defeated. Heihachi reassumed control and drew Nina into his plans..

Nina traveled with Heihachi to the Duomo di Sirio in Italy to recruit the Sirius Marksmen's leader, Claudio Serafino. They were ambushed by Marksmen and fought back. Claudio emerged and refused to collaborate with the Mishima Zaibatsu. Nina spectated a fight between Heihachi and Claudio, which was won by Heihachi. Claudio subsequently accompanied them back to the Mishima Zaibatsu headquarters, where he gave a lead as to Jin's possible location.

Jin was apprehended by Lars before the Tekken Force could get to him. Heihachi dispatched Nina to the Violet Systems facility Jin was being kept in, where she encountered Lars, Alisa Bosconovitch, and Lee Chaolan. Alisa and Nina fought while Tekken Force made efforts to airlift the unconscious Jin by helicopter via his hospital bed. Lee hijacked the Tekken Force helicopter before Nina's team could succeed, and then detonated the facility once Lars and Alisa were out. Nina survived the explosion, but decided to end her association with the Mishima Zaibatsu.

Once again a free agent, Nina returned to private assassination work. Her first job back in the field involved infiltrating a mafia wedding to get to her target. Nina stole the bride's dress to do so, and succeeded in taking all of her targets, including the groom, out in a firefight.

• personality: Nina is cold, indifferent, and ruthlessly efficient in her work. She exhibits little care for or trust in others, and especially enjoys humiliating her younger sister Anna, with whom she has a long-term rivalry. Despite Anna sometimes extending an olive branch, Nina has shown no interest in setting aside their differences, preferring to beat, humiliate, or simply ignore Anna. An exception to this general attitude concerns Steve Fox, the child who was created for the Mishima Zaibatsu Supersoldier Program from Nina's genetic material whilst she was in cryosleep. Steve became one of Nina's targets whilst she was working for The Syndicate; though Nina took the contract with an understanding of she and Steve's relation, She has since told Steve that she does not care for him, though her actions seem to betray a reluctance to harm him. Nina also seems to have respected her father, Richard Williams, from whom she learned the assassin's trade.
• Appearance: Nina has blue eyes and blonde hair tied in a ponytail. She retains a youthful appearance due to being preserved in cryosleep for fifteen years.
• Attire: Nina's outfit is a black patent leather biker catsuit