Romano joined his former Everybody Loves Raymond co-stars on Wednesday to pay tribute to their fallen friend, and the 58-year-old comic opened up to ET about the emotional reunion.
"I hadn't seen these people in a while," Romano told ET at the Keep It Clean Comedy Benefit at The Avalon in Hollywood, California on Thursday. "It was sad to see them on that kind of an occasion, but she meant so much to all of us."
On the hit sitcom, Romano starred as the titular Raymond Barone, while Roberts played his overbearing mother, Marie. Her role was one of the most iconic on the show and even earned her four Emmy Awards.
"People sometimes say, 'Hey, she's known for my show.' [It] seems like I made her when in reality she made me. I was a nobody!" Romano recounted. "She was the MVP of that show. Everybody, everywhere I go, people tell me she was their favorite character."
"As much as she was this overbearing, intrusive mom [on Raymond], she was -- in real life -- just the opposite," he added. "She was just the most loving woman and that's what came through."
Even in the wake of Robert's death, the celebrated comic is still striving to make the world a better place.
Romano used his famed wit for a good cause at the Keep It Clean Comedy Benefit, which supports the Waterkeeper Alliance, a nonprofit charity focused on keeping the world's water clear and safe. "Anytime my stupid jokes could help out a good cause like this it's a win," Romano told ET.