In an interview with Billboard, Warner, 44, expressed his sorrow regarding the difficult time that his former co-star is going through.
“Just as it’s painful to hear any woman talk about sexual assault, whether true or not, it’s just as painful to watch my friend and mentor go through this,” he told Billboard.
The Grammy-nominated star also had only words of praise for the comedian.
“He’s one of my mentors, and he’s been very influential and played a big role in my life as a friend and mentor,” Warner said.
Last November, another member of The Cosby Show came forward in support of the stand-up comedian. Raven-Symoné, 29, had to deny rumors that she was assaulted by Cosby, 77.
“I was NOT [taken] advantage of by Mr. Cosby when I was on the Cosby Show!” she wrote. “I was practically a baby on that show and this is truly a disgusting rumor that I want no part of! Everyone on that show treated me with nothing but kindness. Now keep me out of this!” she clarified on her Instagram account.