Shock rocker Marilyn Manson had mixed feelings about his experience on FX's Sons of Anarchy, mainly due to knowing what was going to happen on the series ahead of time.

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A diehard Sons of Anarchy fan, Manson signed on to play white supremacist prisoner Ron Tully for multiple episodes of the final season. The rocker said that knowing what was ahead was one downside to acting on the show.

"Spoiler alerts," he told KROQ CBS radio recently. "I knew what was going to happen. So I would only try to read my part."

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Manson recalled how he was cast to be on the show.

"I thought the show is so much about that father-son relationship and I just wanted to do something to make my dad happy, and I just thought I was gonna get a song on the show," Manson said.

However, Katey Sagal, who played Gemma on the series, thought he should try out as an actor instead.

"She said, 'Do you want to act?' and I said, 'yeah, that would be amazing,'" Manson said. "That was earlier in the meeting, when I was sort of worried about my father because he was also ill and I was trying to cheer up my dad. This is before my mother had died. So I went to Ohio because my mother had died and I got the phone call that I was going to be on the show. I said, 'Dad, guess what, I'm going to be on the show. Guess what, I'm going to play the head of the Aryan Brotherhood. Guess what, I get paid for it. Guess what, I'm in every scene, every episode that I know of.'"

Manson certainly played a memorable part as Ron in the final season, with one scene featuring him raping Juice (Theo Rossi) and a later scene featuring him killing Juice with a scalpel.