I'd recognize that mottled head anywhere.
A Supercut Of The First Appearances Of Recurring Characters On The Simpsons

Presumably a labor of love, this is an hour-long compilation edited together by YoutuberTeemu_V featuring the first appearances of a bunch of the recurring characters seen on The Simpsons, about a third of which happen in the first season. The video includes “Krusty the Clown, Moe Szyslak, Barney Gumble, Milhouse Van Houten, Comic Book Guy, Sideshow Bob, Ned Flanders, Groundskeeper Willie,” and MORE. Who’s your favorite? Mine will always be Santa’s Little Helper. Oh, and Ralph Wiggum. I see a lot of myself in Ralph. “You glue your head to your shoulder?” And sleep in a drawer.