Tandy Bowen, also known as Dagger, is a fictional character in the Marvel Comics universe. She first appeared in Peter Parker, The Spectacular Spider-Man #64 in 1982. Tandy is known for her ability to create light-based energy daggers, which she uses to fight against crime and injustice. Tandy is often associated with her partner, Tyler "Ty" Johnson, who is known as Cloak. Together, they form the superhero duo Cloak and Dagger, tackling issues related to drug abuse and social inequality. Their stories often explore themes of friendship, sacrifice, and the struggle between light and darkness.