fictional character in Marvel Comics
Jessica Campbell Jones Cage is a fictional character and superheroine appearing in American comic books published by Marvel Comics, and is the protagonist of her series of the same name, who had used the aliases Jewel, Knightress, and Power Woman. After hanging up her costume, she became the owner and sole employee of Alias Private Investigations, but would also marry Luke Cage and start a family with him.
She was created by Brian Michael Bendis and Michael Gaydos, and first appeared in Alias #1 in November of 2001.
The character made her professional debut in the Marvel Cinematic Universe (MCU) television series Jessica Jones and in The Defenders, played by American actress Krysten Ritter.