He’s been called Pixar’s “good-luck charm,” and that’s because to date, John Ratzenberger has done voice work for every Pixar film. The 71-year-old actor might forever be known to audiences as Cliff Clavin on “Cheers,” but to audiences who have grown up with these movies, he’s been a consistent voice for over 20 years. Ratzenberger returned to voice the villain The Underminer in the latest Pixar joint, “The Incredibles 2,” opening this Friday. And whether it’s a supporting part or a quick, Easter Egg cameo, Ratzenberger has always been there. Here’s a chronological list of each of those characters:

Hamm – “Toy Story,” “Toy Story 2,” “Toy Story 3”

By far Ratzenberger’s most well-known Pixar character, this porking piggy bank is chock-full of great one-liners and quips across the “Toy Story” trilogy, whether it’s trading jokes with Mr. Potato Head or making snide put downs about Andy’s neighbor Sid.