Mario is one of the most recognizable franchises in the entire world. With hundreds of games including several incredibly successful spin-off series as well as a blockbuster movie, there's no denying the success of the brave Italian plumber. A crucial aspect of Mario's success is its ability to produce memorable characters that gamers can get to know. Mario is usually careful about introducing new characters, and it's rare for Nintendo to debut one they don't intend to keep around.