An Immortal who encountered Duncan MacLeod and attempted to use him to make herself stronger before taking his head.
Felicia was born Felice Martens in Orleans, France in 1693. As a young woman, she became a prostitute. In 1714, Felicia was raped and murdered by highwaymen near the gates of Orleans. She later revived, newly Immortal. She was then found by fellow Immortal Pierre Bedard, who taught her what she was and how to survive. Bedard was known as an expert forger, and Felice learnt from him. Bedard kept her as a sex slave till he got tired of her and tried to take her head. But, in the end, Felice took her mentor's head instead.
In the middle of the 19th century, Felice entered a relationship with Immortal Claude Devereux. When that relationship went sour, and Devereux left her, Felice swore vengeance. In order to break her opponent psychologically, Felice stalked and murdered Devereux's new mortal lover and their adopted daughter, drowning them both in a fountain.
Felice had also by this time turned her talents to crime, learning to forge documents and portraits, such as the Coronelli map of London. It was in this manner that she supported herself.In 1992, Felice, now known as Felicia Martins, had uncovered the location of Duncan MacLeod, a prominent and skilled Immortal. She hatched her most elaborate scheme yet: she would pose as a fledgling Immortal and trick MacLeod into training her, then she would kill him with his own technique. The scheme worked almost perfectly. When she approached MacLeod's antique shop, Richie Ryan noticed her almost immediately. He helped convince Duncan of her fledgling status, and Duncan reluctantly agreed to train her. He even provided Felicia a prized katana forged by Masamune himself, a blade which proved useful in finally tracking down and beheading her old lover, Devereux. However, she made a fatal mistake when she recognized her own Coronelli forgery sitting in a corner of MacLeod's shop. Unable to help boasting, she remarked about the item being fake, and when MacLeod had it checked out, he unraveled her entire cover story. When Felicia finally challenged MacLeod, the Highlander unleashed a technique which he had deliberately withheld from his student. Unprepared for the new style, Felicia found herself forced to overextend herself towards MacLeod, who then easily slipped past her guard and stabbed her using the Italian fencing maneuver known as Impasse De Soto. In a rage, she made one final swipe at MacLeod, who countered with a withering strike that snapped her new katana in half. Rather than take her head, however, the Highlander warned her to never approach him or his friends again, and walked away.