Duffman, voiced by Hank Azaria, first appeared on season 9's "The City of New York vs. Homer Simpson" in 1997. Usually decked out in a red cape, sunglasses, and his signature beer can belt, Duffman is best known for his signature catch phrase ("Oh yeah!"). His last proper appearance was on the season 36 episode "P.S. I Hate You."

The Simpsons seemingly retired longtime character Duffman (voiced by Hank Azaria) during the January 4 episode titled Seperance which spoofed the Apple TV series Severance.

“The Duff Corporation has, uh, retired that character forever,” he said in his recognisable booming voice, adding: "All the old forms of advertising are now passé. Corporate spokesmen, print ads, TV s...