Kelsey Grammer opens up about his divorce [Exclusive video]

Who needs a therapist when there's Oprah Winfrey? The "Frasier" star has a frank discussion with the talk show host on her show "Oprah's Next Chapter," about his divorce. In this exclusive clip, the TV star appears with his new wife, Kayte Walsh, and opens up about his former spouse, "Real Housewives of Beverly Hills" star Camille Grammer, whose name he won't even say on camera.

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The 57-year-old married Camille in 1997, and they have two children together. The couple's marriage came apart in 2010 as cameras rolled on Camille's reality show in L.A. -- while Kelsey was in New York City performing on Broadway. In 2011, Grammer married Walsh, a flight attendant 25 years his junior.

Grammer tells Winfrey how it went down, as she sums up his past relationship: "You already knew your marriage was over. It had already gone on too long, according to you, because it was over when it started. It was a facade. But you lacked the courage to come home and say so." Grammer responds, "I did. And I did believe that I owed something to that person. That I owed fame." Winfrey points out, "You won't say her name?" Grammer replies, "No."

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Winfrey asks in part disbelief, "So you believed that you owed her fame?" Grammer says he did, "Because she had given up so much to endure this horrible life she had with me." Winfrey clarifies that the actor is being "sarcastic," and he confirms he is, but "I did believe what she said -- and that is what she said."

"Oprah's Next Chapter" airs Sunday, August 26, at 9 p.m. ET/PT. Join the conversation on Twitter #NextChapter.