The Village Voice gives out the annual awards, which honor Off-Broadway and Off-Off Broadway shows.

Knight plays Dr. George O'Malley on "Grey's Anatomy" and lately has been famously embroiled in a controversy involving cast mate Isaiah Washington referring to Knight with a homophobic slur.

Knight got his start in theatre, appearing on Broadway in Noises Off and Tartuffe, and Off-Broadway in Scattergood, This Lime Tree Bower and Boy. He is a member of the acting company of the Guthrie Theater in Minneapolis, where his roles included Richard Miller in Ah, Wilderness! and the title role in Amadeus.

Nixon is best known for playing Miranda on "Sex and the City." Last fall she was seen Off-Broadway in the title role of The Prime of Miss Jean Brodie for The New Group, and last year she won a Tony Award for her performance in Rabbit Hole for Manhattan Theatre Club.

At age 14, Nixon made her stage debut on Broadway in The Philadelphia Story and at age 18 performed in two Broadway shows — Hurlyburly and The Real Thing — simultaneously. Her other Broadway credits include The Women, Indiscretions (Tony nomination), The Last Night of Ballyhoo, Angels in America and The Heidi Chronicles. Nixon also appeared in the television movie "Warm Springs" (Emmy nomination) plus films such as "Amadeus" and "Addams Family Values."

As previously announced, the Obie Awards committee will be chaired by the Voice theatre critic Michael Feingold and will include the Obie-winning playwright-director Adam Rapp, the two-time Obie-winning director and writer Ain Gordon, the New York magazine theatre critic Jeremy McCarter, the executive director of P.S. 122 Anne Dennin, the Obie-winning playwright-composer Kirsten Childs and the Voice theater critic Alexis Soloski.

For more information visit www.villagevoice.com/obies.