Film funnyman Tom Arnold has defended his pal Charlie Sheen - insisting the star is a "target" for false allegations due to his controversial past. Sheen was arrested on Christmas Day after a bust-up with wife Brooke Mueller.

He was charged with third-degree assault, menacing, and criminal mischief, and is back in court in Colorado on Monday. He has since undergone treatment at a recovery facility as a "preventative measure," while his wife also went into rehab.

Nevertheless Arnold, who has battled alcohol and drugs since he was a teenager and is now celebrating 20 years of sobriety, insists he finds it hard to believe Sheen could be violent towards Mueller.

He tells Larry King, "Addiction - being drunk could lead to violence. It can. I'm not saying it was Charlie. I love Charlie. I know Charlie. I don't believe anything that I've read about what happened with Charlie. You know, I think he's been open about he and his father, about his situation. I know he's worked real hard on it. I've never heard any of the violence attached to it."

"That's the thing. If you're like me, and people know you were once a drug addict - they can Google my name - they can accuse me of anything... It doesn't matter. You are a target. Charlie Sheen is a very good target."

In 1998, Sheen fell out with his actor father Martin after he reported the star for violating his parole. Sheen was on two years probation for attacking a girlfriend when he allegedly overdosed after injecting cocaine.

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