Charlie Sheen's father, Martin Sheen, intentionally chose not to participate in his son's tell-all doc to not be "complicit" if it didn't go well. During a panel event for Netflix's aka Charlie Sheen on Wednesday, April 22, director Andrew Renzi addressed Martin's absence from the project, saying, "There was another thing that Martin said specifically that I will always really respect, just him being a father. He said, 'If this goes sideways, if you do him dirty' - basically without saying that because Martin Sheen would never talk about that.