Alyssa Milano Sobs Discussing Danny Pintauro's HIV-Positive Reveal: 'I Had No Idea'

by Leanne Aguilera 5:00 PM PDT, September 29, 2015
Photo: CBS

On this past Saturday's episode of Oprah's Where Are They Now?, Danny Pintauro revealed to the world that he has been HIV-positive for the past 12 years.

Now his Who's the Boss co-star, Alyssa Milano, is speaking out (and shedding tears!) on The Talk about Pintauro's decision to share such a deep secret with the world.

"I hate that it took him so long to feel comfortable, but I'm so glad that he is able to express himself now, and I guarantee you he will change so many lives," Milano said as tears streamed down her face.

WATCH: 'Who's The Boss' Star Danny Pintauro Reveals He's HIV-Positive

The pro-breastfeeding mom continued, "I'm so grateful that this disease is now being discussed again because it feels like there was such a long time that it wasn't, and he is a beacon of light, and he will be. I'm proud."

Two of Pintauro's Who's the Boss co-stars have known the truth for many years. Judith Light, who played his mom, Angela Bower, on the beloved '80s sitcom has been a strong supporter, as well as Tony Danza.

MORE: Judith Light on Danny Pintauro's HIV Revelation: 'I'm So Proud of Him'

However, Milano admitted that she had "no idea" about Pintauro's HIV-positive diagnosis. "I didn’t talk for many years after the show was over because when the show ended it was a different time," she explained. "We didn’t have cell phones or Facebook… No texting or anything, so I lost contact with him for a long time. This was the first that I have heard of it."

ET talked to Pintauro on Monday, when he shared that he himself was devastated when he heard the news 12 years ago. "It's like anybody hearing you have terminal cancer or something awful," Pintauro said candidly. "My life is forever changed."