Mercedes "Misty" Knight is a fictional character appearing in American comic books published by Marvel Comics. Created by Tony Isabella and Arvell Jones, Knight was first mentioned (by name) in Marvel Premiere #20 (Jan. 1975) and appeared in the next issue.Within the context of the Marvel Universe, Knight is a former NYPD police officer, whose arm was amputated following a bomb attack. After receiving a bionic prosthetic from Tony Stark, she started a private-investigation agency with close friend, Colleen Wing. The two would later form the crime-fighting duo Daughters of the Dragon. As private investigators, Knight and Wing frequently worked with the Heroes for Hire duo Luke Cage and Iron Fist; Knight is often seen in a romantic relationship with the latter. In 2013, Knight became co-leader of the Valkyrior with Valkyrie in The Fearless Defenders #1 by Cullen Bunn and Will Sliney.