John Ratzenberger is best known for his role as Cliff Clavin in the sitcom ‘Cheers’ (1982 – 1993). He has featured as the fictional character, 'Cliff Clavin,' in a few other television shows, including ‘Frasier’ (2002), ‘The Simpsons’ (1994), and ‘Walt Disney’s Wonderful World of Color’ (1990).
He has appeared as a guest on ‘The Ellen DeGeneres Show’ (2007) and a reality cast member on ‘Dancing with the Stars’ (2005).
Ratzenberger has lent his voice to every Pixar Animation Studios film and is famous for his voice role as 'Hamm' in the ‘Toy Story’ franchise.
His other hits on the big screen include ‘Finding Nemo’ (2003), ‘Ratatouille’ (2007), ‘Inside Out’ (2016), and ‘Coco’ (2017). He played the role of Bill Towner in ‘House II: The Second Story’ (1987) and appeared as himself in ‘Kickin’ It Old Skool’ (2007). However, both movies did not do well at the box office.