Neil Patrick Harris is “disappointed” Isaiah Washington’s derogatory comments towards gay co-star TR Knight keep making headlines. Harris announced publicly he was gay in November, after Internet reports speculated on his sexuality.

He tells TVGuide.com, “TR (Knight) has proven himself to be an incredibly classy, dignified guy. I’m impressed that Katherine Heigl said what she said. I was shocked that it all reared its ugly head again.”

Washington shocked cast members on Monday in the Golden Globes press room when he denied he had called Knight a “faggot” during a spat on the set in October.

Harris refused to comment on what form Washington’s “punishment” should take adding, “It’s impossible for me to make any kind of comment about that because I wasn’t there when it happened. It’s just disappointing that it’s cyclical.”

Washington issued a statement on Thursday, apologizing for his behavior, and admitted he needed professional help to deal with his issues.