Jinx is a fictional character from the G.I. Joe: A Real American Hero toyline, comic books and animated series. She debuted in 1987 as the G.I. Joe Team's female ninja, and since then her code name has been the identity of several other incarnations of the same character, including one of Snake Eyes' apprentices in G.I. Joe: Sigma 6, Chuckles' undercover contact in G.I. Joe: Cobra, and Storm Shadow's cousin in G.I. Joe: Renegades. She is portrayed by Élodie Yung in the 2013 film G.I. Joe: Retaliation.

Snake Eyes is a fictional character from the G.I. Joe: A Real American Hero toyline, comic books, and animated series, created by Larry Hama. He is one of the original and most popular members of the G.I. Joe Team, and is most known for his relationships with Scarlett and Storm Shadow. Snake Eyes is one of the most prominent characters in the G.I. Joe: A Real American Hero franchise, having appeared in every series of the franchise since its inception. He is portrayed by Ray Park in the 2009 live-action film G.I. Joe: The Rise of Cobra, and the 2013 sequel G.I. Joe: Retaliation. Henry Golding portrays the titular character in the 2021 reboot Snake Eyes: G.I. Joe Origins.