Tim Meadows is an American actor and comedian. He was one of the longest-running cast members on the NBC sketch comedy series Saturday Night Live, where he appeared for 10 seasons from 1991 to 2000. For his work on SNL, he received a nomination for the Primetime Emmy Award for Outstanding Writing for a Variety Series in 1993. He played main character John Glascott on the ABC sitcom Schooled for its two-season run after playing the same character in a recurring role for six seasons on The Goldbergs. Meadows is also known for his role as Principal Duvall in the 2004 teen comedy film Mean Girls, a role he then reprised in Mean Girls 2 and in the film's 2024 musical adaptation.