* Jonathan Silverman as Zack
* Tiffani Amber Thiessen as Kelly
* Alice Cooper as The Dean
* John Vernon as Chancellor
* Sean Astin as Lenny
* Robert Carradine as Vince
* David Spade as Dave
* Charlie Sheen as Nick
* Bradley Whitford as Dingleberry
While Charlie Sheen has a small but memorable role, it's important to note that he wasn't one of the main characters in the movie.