According to Bubba Smith, he made more money from his work on this film alone, than he had earned in ten years of playing professional football. This was due to Bubba having requested a 2 percent piece of the movie's profits, in lieu of a higher salary prior to shooting.
Bill Paxton was offered the role of Zed, but turned it down, because the contract required him to also work in the future sequels. He ended up doing Aliens (1986) instead.
The only movie in the original Police Academy heptalogy in which Callahan (Leslie Easterbrook) does not appear. After the first film was completed, Leslie was pregnant with a baby daughter, which prevented her from working on this sequel.
Steve Guttenberg almost did not return for the sequel, as he was not pleased with the script as originally presented to him. After some re-writes, and a bigger paycheck, Guttenberg was happy to reprise his role as Mahoney.
When Hooks punches Proctor in the jaw, the punch she lands on his jaw was real, and by accident.
Paul Maslansky: (At around one hour and twenty-three minutes) Wedding guest, seen in background when the bouquet is caught.