Former Grey's Anatomy star T.R. Knight is a married man after he wed boyfriend Patrick in upstate New York on Friday.

Knight's former Grey's co-stars Katherine Heigl and Kate Walsh were among the guests at the "very small and quiet" ceremony, according to Us Weekly.

The "Knocked Up" star tweeted about the wedding, sharing pictures of herself with husband Josh Kelley, Walsh and two pals in a photo booth.

"Having the time of my life at [Knight's] wedding with @katewalsh @joshkelley Kate's amazing fella Chris & my girl Chey!" she captioned the funny photos.

T.R. and Patrick have been together for three years.