Actor, director, producer, writer, and entrepreneur, John Ratzenberger has had an amazing career thus far. For over 45 years, John has found success in many television shows, most famous for his role as the mail carrier, Cliff Clavin, in Cheers. Arguably, John has reached a new level of stardom as the only actor to be cameoed as a voice or likeness in each Disney-Pixar movie since 1995! Join us as we take a look at his roles in each film.