The central intelligence of the Borg Collective in Star Trek: First Contact.
The Borg Queen is the voice and face of the Collective, a cybernetic being who serves as a focal point for the Borg's drive to assimilate all life. She first appears in the film Star Trek: First Contact, where she attempts to alter history by assimilating Earth in the past and tries to seduce Data into joining her.
Her relationship with Data is a notable part of her story, as she offers him a human-like skin and the sensation of flesh, testing his loyalty to the Federation. The Queen also appears in Star Trek: Voyager, where she is a threat to Captain Janeway and her crew, and her influence on Seven of Nine is a central theme. In Star Trek: Picard the Collective returns in new forms, and she plays a part in the story once more.
She is remembered as one of the franchise's most chilling antagonists, a charming and menacing embodiment of the Borg's cold perfection.