The character has also appeared in licensed adaptations. Created by writer Chris Claremont and artist Herb Trimpe, she first appeared in the UK comic book Captain Britain #8 (Dec. 1976), by the Marvel imprint Marvel UK. She was initially a supporting character in the adventures of her fraternal twin brother, Captain Britain, briefly substituting for him in the role.
Later, she became the mutant superheroine Psylocke. Originally presented as a precognitive in the pages of Captain Britain and then as a telepath, the character was eventually written as unexplainedly acquiring the telekinesis of Jean Grey. Psylocke later possesses both telepathy and telekinesis.
