Robert "Rob" Reiner is an American actor, director, producer, comedian, and activist. He is known for his TV roles as Michael 'Meathead' Stivic in All in the Family and Marty DiBergi in This is Spinal Tap. He directed acclaimed films such as Stand by Me, The Princess Bride, When Harry Met Sally, and The Bucket List. For Disney, he played himself in the Disney Channel Original SeriesHannah Montana and Wizards of Waverly Place.