Tilda Johnson is a Marvel Comics character that appears in Luke Cage, played by Gabrielle Dennis.
She is a brilliant scientist and a gifted medic who helps Luke in his battle against crime with her impressive knowledge of chemistry, biology and medicine. She is the daughter of Black Mariah, one of Luke's most notorious enemies, but she refuses to go the same dark path as her mother, and she wishes for nothing more than to see the streets of Harlem free of crime.
Tilda Johnson was created by Steve Englehart, John Romita Sr., and Alan Weiss.