Williams was brought up by an Episcopalian and a Christian Scientist. He seems to claim Episcopalian but many speculate that he's really an atheist.
Williams is a long-time supporter of the Democratic Party and quite liberal.
Robin WIlliams was born in Chicago, Illinois and grew up outside of Detroit, Michigan.
Williams' father was Episcopalian and his mother was a devout Christian Scientist. Though Williams is not very religious today, he considers the possibility that his mother's faith and its idea of "mind over matter" helped him kick his drug and alcohol addictions.
It's difficult to know when Williams is being serious about religion or if it's all part of the act. He now seems to identify Episcopalian–like his father–which he describes as "Catholic light: half the religion, half the guilt."
But God is often the subject of his jokes–or at least a pivot point, such as:
Cocaine is God's way of telling you you are making too much money.
See, the problem is that God gives men a brain and a penis, and only enough blood to run one at a time.
All jokes aside–politics
Williams is a staunch supporter of the Democratic Party and perhaps one of the most liberal actors in Hollywood–which is saying a lot. He's pushed the limits of social convention in his films from a cross-dressing nanny in Mrs. Doubtfire to a gay father who makes a fool (and a cross dresser) out of a conservative politician in The Birdcage.
But in the real world, Williams has said he thinks gay marriage should be legal, but throws a joke in for good measure:
You could talk about same-sex marriage, but people who have been married [say] 'It's the same sex all the time.'
His support of the Democratic Party goes into six-figure territory, with his political donations to the party and left-leaning special interest groups totaling over $150,000.
His liberalism extends into criticisms of Republicans and conservatives with the full weight of his comedic and critical genius going to former U.S. president George W. Bush. For example, when Obama was elected he said:
It's the end of the reign of George the 2nd. The reign of error is over. America is officially out of rehab…He's a gift to comedy, though, he's a comedy pinata. I'm going to miss him.
Aren't we all.