Ridley (Metroid)
Often considered one of the most memorable Nintendo villains, Ridley has been a mainstay of the series, having appeared (through various incarnations) in almost every "Metroid" game to date (all but "", "Metroid Prime Hunters" and ""). He has also appeared in the "Super Smash Bros." series, however, he had not been made a playable character until "Super Smash Bros. Ultimate" in 2018, making it also the first game overall to have Ridley as a playable character.
Villains United
The central revelation of the book is that Mockingbird is actually Lex Luthor and that the Luthor who organized the Secret Society is an "imposter" (in reality, Alexander Luthor, Jr.). Mockingbird/Luthor reveals that he chose those six individuals because each had different knowledge and experience that could be used to oppose the Society: Catman, for his knowledge on Batman's villains; Deadshot, for his knowledge on the remaining Suicide Squad members; Parademon, for his experience living on Apokolips; Ragdoll, because he grew up as a "nephew" to the members of the Injustice Society; Scandal, because she grew up with Vandal Savage and his associates; and Cheshire, for her knowledge on the villains of the Teen Titans. Mockingbird/Luthor reveals to Scandal that he never placed the families of the Six in danger and disbands the team. Also notable is the Society Luthor's apparent murder of Pariah, a character from the original Crisis.