Seven of Nine

Seven of Nine (born Annika Hansen) is a former Borg drone who joins the crew of the Federation starship Voyager. She was a fascinating and complex character, who struggled to adjust to life in the 24th century after being assimilated by the Borg as a child. She was fiercely independent and intelligent, but also had a deep desire to connect with others. Her relationship with Captain Janeway was one of the most interesting and complex in the Star Trek universe, and she also had a close friendship with The Doctor. Seven of Nine was a fan favorite, and her return in Star Trek: Picard was met with great excitement.