It's difficult to categorize Shearer's art because he's done radio (KRCW), TV (Jack Benny, SNL, Politically Incorrect, Ellen, Friends, Murphy Brown), movies (This is Spinal Tap, For Your Consideration, Abbott and Costello, A Mighty Wind, The Right Stuff, The Truman Show), voice work (The Simpsons, hello!) and more. He started acting at the age of seven. Shearer quipped, "I don't eat lunch," which must be the only way he takes care of all that business.