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William Daniels revealed in his new memoir that he was abused as a child actor.

Best known for his role as Mr. Feeny in "Boy Meets World," Williams said he only realized he was abused much later in life.

He wrote in "There I go Again: How I Came to Be Mr. Feeny, John Adams, Dr. Craig, KITT & Many Others" that his mother forced him to perform and work crazy hours even on weekends.

"Many decades later, when I started writing this book, I started seeing a psychologist...who suggested that I was an abused child," the 89-year-old wrote in an excerpt obtained by People. "I was shocked to hear such a description — that I had been robbed of a normal childhood, forced to perform and put into situations that I had no control over."

He added, "It was unhealthy, my doctor said, that I was unable to express my anger, my fears and my dread of knowing what was expected of me in the future."

Williams also said that his mother's failure to compliment him was hard on him.

"Why did my mother have to drag us around, throwing back carpets in her friends’ apartments, demanding that we dance like trained monkeys?… And why was I such a wimp and couldn’t say no? In my defense, I was just a child. But still," he wrote.

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