T. R. Knight

T.R. Knight of "Grey's Anatomy" in 2004, the year the hit ABC series began.
He was the cuddly one, the doctor-in-training who had a crush on Meredith, then impulsively married Callie. And that is what viewers of ABC's primetime medical soap opera "Grey's Anatomy" knew about the shy Dr. George O'Malley - until a flare-up among the cast of the hit show focused attention on the actor who plays him, T.R. Knight.

Historians disagree over what exactly transpired in October of 2006 between cast members Patrick Dempsey and Isaiah Washington. Suffice it to say that they got into an argument, and, witnesses allege, Washington uttered an anti-gay epithet to describe the absent Knight - which he denied in front of the press at the Golden Globes three months later, repeating the epithet.

Photos: Is Knight More Interesting Now?

The fall-out from this real-life episode was that Washington was not invited back for the fourth season of the show, and T.R. Knight quite publicly disclosed that he is gay. - "I guess there have been a few questions about my sexuality, and I'd like to quiet any unnecessary rumors that may be out there," he said in a statement released to People Magazine. "While I prefer to keep my personal life private, I hope the fact that I'm gay isn't the most interesting part of me."

Theodore Raymond Knight , born in Minneapolis, began his acting career in the theater - he was in the acting company of the renowned Guthrie Theater, and has performed on Broadway in a revival of "Noises Off," opposite Patti LuPone, and in "Tartuffe" - had appeared in single episodes of a handful of TV series before landing the role that has made his face familiar.