Helena Douglas (DEAD OR ALIVE)

Helena Douglas is the illegitimate daughter of Fame Douglas and his mistress Maria,a world-class soprano opera singer. Seemingly distant from her father and his work, when he was murdered, Helena was hardly affected. Helena followed in her mother's footsteps, becoming a famous opera singer in her own right. While performing at the Great Opera House, she was targeted by an unknown assassin (Christie) using a sniper rifle. Maria, who was present with her, spotted the rifle at the last second and dove in front of her daughter, killing her instantly. The assassin fled, leaving Helena alone and covered in her mother's blood. Helena set out for vengeance, utilizing the Pi Qua Quan fighting style.
While searching for the culprit, she discovered that the murders of her parents and attempt on her own life are somehow related to the Dead or Alive World Combat Championship, and entered the tournament to discover the truth. Although never explained in the series, Helena appears to have learned or known information pertaining to DOATEC, most notably the ill-fated Epsilon Project when she encountered Hayate suffering from amnesia. During the tournament, she also encounters Ayane; in the encounter she accuses Ayane of being her mother's murderer. Ayane neither confirms nor denies having killed Helena's mother, after which a fight breaks out between the two. Helena is later captured by Donovan and imprisoned. Although Helena, the reluctant heiress, states that she is not in any sort of connection with DOATEC, Donovan tells her that the only way to obtain her freedom and know the truth behind DOATEC is to win the third tournament. In the meantime, Donovan assigns Christie to keep an eye on Helena and, should the need arise, kill her if she discovers too much. Helena soon confronts Christie, who admits that she is an assassin sent to kill her.
In Dead or Alive 4, Helena takes control as the new chairman of DOATEC. She invites the assassin Bayman to the DOATEC Tritower in order to hire him to take out Donovan, but he declines. That night the Tritower comes under attack by the Mugen Tenshin ninja clan. Helena comes across Lisa, who admits she tricked the ninja into attacking to stop Donovan. She later crosses paths with Kokoro, and reveals they are blood-related, as Miyako (Kokoro's mother) was one of Fame's mistresses. Helena finally finds out that Christie killed her mother and confronts her. The end result to their fight is left unknown, except that they both survive. In her CG ending, Helena decides to go down together with DOATEC and subsequently sets the Tritower complex on self-destruct. Plagued by flashbacks of her deceased mother, she moves up to the helipad between the three towers that make up the complex. On her way, Helena finds Anna, a mistress of Fame Douglas who helped plan the assassination of Helena's mother, and consequently shoots her in the head. Meanwhile, Ayane, Hayate, and Hayabusa are using ninpo powers to destroy the towers and the DOATEC security forces while Kasumi battles her clone, Alpha-152. Helena, willingly giving up her life, was about to be consumed by the flames of the burning buildings when Zack suddenly saves her, flying in with a helicopter.