C.K. TK: Williams, left, and Louis, right.

C.K. Williams won the Pulitzer Prize and this year's $100,000 Ruth Lilly Poetry Prize.

Louis C.K. won an Emmy for The Chris Rock Show and is developing a sitcom for HBO.

C.K. Williams was born in New Jersey.

Louis C.K. was born in New York.

C.K. Williams published Flesh and Blood.

Louis C.K. made a joke about Bill Clinton breastfeeding puppies.

C.K. Williams wrote:

A squalid wayside inn, reeking barn-brewed vodka,
cornhusk cigarettes that cloy like acrid incense
in a village church, kegs of rotten, watered wine,
but then a prayer book's worn-thin pages,
and over them, as though afloat in all that fetidness,
my great-grandfather's disembodied head.

Louis C.K. wrote: "Dirty Dee, you're a baddy daddy lamatai tebby chai!"

C.K. Williams has a head of salt and pepper hair.

Louis C.K. is bald.

C.K. Williams has been published by Slate.

Louis C.K. has his own website.