Colleen Wing

Colleen Wing is a Marvel Comics character that will appear in Iron Fist, played by Jessica Henwick. She trained under the same sensei as Danny Rand,and thus became Danny's partner in his adventures, helping him protect the innocent and fight the forces of evil. She is an expert martial artist and a skilled swordswoman, and has mastered the mystical power of the Iron Fist, which gives her superhuman strength and invulnerability.