John Ratzenberger Directory References Images Discover 6 Wars of Independence What is Holy Week? Causes of the Great Depression 7 of the World’s Most Dangerous Festivals 9 of the World’s Deadliest Snakes What Do Eggs Have to Do with Easter? 10 of the World’s Most Dangerous Fish Contents John Ratzenberger American actor Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:role in “Cheers” In Cheers…salt-of-the-earth mailman Cliff Clavin (John Ratzenberger).Read More