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.
Batman: Arkham Origins (mobile)
"Arkham Origins" features returning characters from its console counterparts. The main character is Batman, who is fighting numerous villains who are loose in Gotham City. The six main villains pinpointed in the intro include Bane, Firefly, Electrocutioner, with the game also featuring Black Mask and a Most Wanted mission featuring Copperhead.