Hammerhead Hog (voiced by Gregg Berger) is a former bully that Orson dealt with in school.
Hammerhead would intimidate Orson into giving him his lunch money, a practice that stopped after Orson informed the principal of the ordeal. He later visits Orson, who thinks he wants revenge. Instead, he returns all the money ($12.50 in quarters) he took from Orson, having turned a new leaf.