9. Reverend Lovejoy
The good Reverend of the First Church of Springfield, who made his debut in the first season's "Telltale Head" episode, might sometimes use the Bible to his advantage (see "Whacking Day") and often expresses begrudging disdain for his congregation's most faithful servant, Ned Flanders. But to his credit, he occasionally comes around to being the voice of reason for the Simpson family. Although Lovejoy is blindly confident, like many of Shearer's Springfieldian citizens, the voice actor manages to bring humanness to the role with a tinge of downtrodden befuddlement. Lovejoy is a character torn between his faith and pop culture ("Wait a minute, this sounds like rock and/or roll," he says to "In-a-Gadda-Da-Vida"), making him an especially idiosyncratic character whom Shearer developed masterfully.