Sheen was fired this year from his sitcom "Two and a Half Men" after eight seasons because of his erratic behavior and substance abuse. He recently signed on to star in a comedy series based on the film "Anger Management," but it is unclear on what network the show will run.
"He's a survivor," Richards told CNN's Piers Morgan. "If anyone can pick themselves up, make a huge comeback, it's Charlie."
Asked if she could imagine circumstances under which she might reconcile with Sheen, the father of two of her three daughters, Richards replied, "I'm way too old for him now."
"I'm way past his age range," his 40-year-old ex-wife joked.
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