Castlevania 2's Simon Belmont is coming to Super Smash Bros. Ultimate, as it was revealed in today's Nintendo Direct. Moments after, it was also confirmed that Richter Belmont will be Simon's "echo fighter", giving you a two-for-one on Belmonts in the upcoming brawler.
From Destructoid's coverage:
Simon has been long-rumored by a leak that also involved Ridley, which turned out to be true after his unveiling at E3 this year. He was unveiled by way of a trailer where Luigi is straight up killed by Death (!) and will sport the signature Belmont clan whip (which is described as a "longer reach than any other fighter," even though it's on the slow side). He'll also bring his Axe, Cross, Holy Water, and uppercut abilities along. Dracula's Castle "the darkest of stages," is confirmed, and "bosses from across the Castlevania series" will mess with you.