Jon Cryer doesn't want to be part of Charlie Sheen's "cycle"

Speaking in aka Charlie Sheen, Jon, 60, said: "I worked with Charlie Sheen for eight years. And if you wonder what it's like to work with Charlie Sheen for eight years, when I started, I had hair.

"I had some trepidation about participating in this, partially because part of the cycle of Charlie Sheen's life has been that he messes up terribly, he hits rock bottom, and then he gets things he gets things going again.

"And he brings a lot of positivity in his life, and that's when he burns himself out again. He just can't help but set that house on fire, and I didn't want to be a part of that cycle.

"I'm not here to build him up and I'm not here to tear him down. But I sure hope this doesn't go bad."

Charlie, 60, recently admitted he doesn't have the right phone number for Jon anymore, after trying to thank him personally for taking part in the documentary.

He told PEOPLE magazine: "I'm thinking I wrote to the wrong number.

"It's not like Jon did not respond. He's super responsible like that. So if you're reading this, Jon, DM me your new number!"

The Anger Management star explained that Jon was the one person he didn't contact directly to ask them to be involved in the documentary.

He explained: "The only person I didn't call personally to participate in the doc was Jon. "And the only reason I didn't call him was because I didn't have the right number for him, so the director reached out to him."

Charlie still tried to contact Jon after seeing his candid comments in the film.

He said: "When I saw everything that Jon spoke about, so honestly and very compassionately, I wrote to him and I said, 'Hey, thank you for your contributions, and I'm sorry we didn't connect personally.' "

Despite not hearing back from Jon directly yet, the former Anger Management star acknowledged how much it meant to hear his side of things.

He added: "It was really cool to hear from his perspective.

"He was in the line of fire with all that stupid s*** going on, and it was affecting him and his family and his career and all that. I can't debate anything that he said."

Charlie was fired from Two And A Half Men in 2011 after his personal problems caused issues with people including the sitcom's creator Chuck Lorre.