Veteran actor Harry Shearer (This Is Spinal Tap) will appear on Dawson's Creek later this fall playing Principal Peskin. "We'll meet him in one episode and it's up in the air from there," executive producer Paul Stupin tells TV Guide Online. "It's certainly not impossible that we will be seeing him in the future." Shearer's TV work includes voicing numerous characters on The Simpsons and making appearances on ER, Friends and most recently, Just Shoot Me.