Mister Negative is a supervillain appearing in American comic books published by Marvel Comics. The character is usually depicted as an enemy of Spider-Man, the Punisher, Shang-Chi, and Cloak & Dagger. The character was created by Dan Slott and Phil Jimenez, and first appeared in "Swing Shift", a story in Free Comic Book Day: The Amazing Spider-Man #1. The name "Mister Negative" is a reference to photographic negative, as the colors of his skin, hair, and costume are inverted when he transforms into his alter ego.

Zheng Shang-Chi, also known as the Master of Kung Fu and Brother Hand, is a superhero appearing in American comic books published by Marvel Comics. The character was created by writer Steve Englehart and artist Jim Starlin, debuting in Special Marvel Edition #15 in the Bronze Age of Comic Books, and starring in his own solo title until 1983. Described as the greatest martial artist alive, Shang-Chi has been trained since birth to be the ultimate fighter with a specialization in various unarmed and weaponry-based wushu styles, including the use of the gùn, nunchaku, and jian. Shang-Chi later assumes leadership of the Five Weapons Society and acquires the Ten Rings weapons.