12/04/2012 06:06 pm ET

Dean Winters On The End Of '30 Rock,' New HBO Project

Dean Winters has uttered his last "dummy." The "Law & Order: SVU" veteran said goodbye to his "30 Rock" character Dennis Duffy, and said his last day on the show was surprisingly emotional.

"It was sad," Winters told The Huffington Post at MoMA's Fifth Annual Film Benefit to Honor Quentin Tarantino. "On my last day of work I didn't think I was going to be as emotional as I was, because I've only done 15 episodes. It was more sad knowing that I'm never gonna be able to utter those words again ... 'Dummy' ... or any of those things again. The writing on that show is so pristine and so on-point and you don't come across that very often."

Dennis was Liz Lemon's (Tina Fey) loser ex-boyfriend on "30 Rock." His character was caught by NBC's "To Catch a Predator" segment, pedaled beepers and adopted a son, Black Dennis. Winters said he hopes to reunite with his on-screen ex-girlfriend someday. "I would love to work with Tina again in the future, but I'm just happy to have had the experience," he said.

And Winters might return to series TV soon.

"I'm developing a show for cable right now with the creator of 'Oz' on HBO. We've been developing something for a while and it takes a while for these things," he explained. "It's a show that takes place in New York City from 1993 to 2001 and it's all about the Lower West Side of Manhattan and the whole development of the nightlife scene and this and that. It has a twist to it that no one else has ever done."

"30 Rock" airs Thursdays at 8 p.m. EST on NBC.

30 Rock