From: "Religious Affiliations of Celebrities" page in "Celebrity Religion" section of "Religion Facts" website (http://www.religionfacts.com/celebrities/religions_of_celebrities.htm; viewed 26 April 2007):
Below is an index of the religious affiliations or belief systems of celebrities (both living and dead; in film, television, music, literature, academics and politics), listed in alphabetical order by last name...
Celebrity: Kurt Vonnegut (b. 1922)
Religion/Belief: Atheism / Unitarianism
Quotes, More Information, Sources:
The American author has said, "I am an atheist (or at best a Unitarian who winds up in churches quite a lot)." - James A. Haught, 2,000 Years of Disbelief: Famous People with the Courage to Doubt (1996)