Ferris Bueller is a high-school slacker who skips school for a day in Chicago, with Mia Sara and Alan Ruck. Ferris regularly breaks the fourth wall to explain his techniques and inner thoughts. Protaganist of Ferris Bueller's Day Off (1986).
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.
