Carl Carlson is one of Homer's friends and co-workers from the Springfield Power Plant on The Simpsons. Despite being married, Carl is often portrayed as having a bit of a homosexual relationship with his best friend, Lenny. Carl is actually a really smart guy, having gotten his masters and proven his scientific prowess in an epiosde or two.
Homer: That is the most amazing doughnut I've ever tasted
Mr. Burns: Well, if you stay on with the Springfield nuclear plant, you could have one of these tasty beauties every day.
Lenny [about doughnut]: One of these every day might kill us.
Carl: Can we get a health plan to go with them?
Mr. Burns: Sure, you could have a health care or.... two donuts a day.
Lenny: I'm gonna miss ted, he was a good supervisor
Carl: Definitely hands off. He didn't mind if we punched out late
Homer: And he didn't mind that we made a few changes to the soda machine...mmm... beer