Rob Lowe gave super fans of “The West Wing” a little insider knowledge on Thursday’s installment of “Oprah.”

On the show to chat about his new book, “Stories I Only Tell My Friends,” the actor revealed the real reasons why he left the hit series in 2006 – respect and money.

“I don’t really know where it began to go wrong,” said Lowe who then pointed out that “everybody got a raise in succession” except for him. “At the end of the day I said, ‘This isn’t right,’” he explained.

As Lowe has been friends with the Sheen clan for three decades (Martin Sheen played President Jed Bartlet on “The West Wing”), it came as no surprise that Oprah asked him about Charlie Sheen’s recent behavior. “Honestly it really is Charlie being Charlie,” he said explaining that the two agree to disagree on sobriety.