Dean Peterson (Faith Off)

Dean Peterson is the dean at Springfield University, he apparently replaced Bobby Peterson after the latter was run down by Homer Simpson.

History
During Homer's college reunion, Homer decided to pull a prank on Dean Peterson involving a bucket with glue on the bottom and an ajar door as revenge for forcing him to donate. However, the plan backfired when it turned out that someone else set up the prank bucket, causing it to fall on Homer's head.

He was later seen singing with the Springfield Elementary faculty, implying either he now works there or he's a part time teacher.