Slater was considered for the role of Miguel Bain.
Christian Slater turned down the lead role of Eric Draven.
Emilio Estevez was far down the list of actors for the role of Frank Wyatt. A trade paper story explained that the studio's despiration led to Estevez taking a much higher-than-expected payday. Actors who passed included Tom Cruise and Christian Slater.
According to wikipedia, Christian Slater was considered to play Pumpkin.
Did you know that Christian Slater was not the only choice for these movies? (click to learn more)