If you've seen the HBO series Oz, then you already know that daddy for days Christopher Meloni is THE guy that you want to be stuck with if you go to a men's prison. Meloni showed off his cock, balls, and ass too many times to count while turning Oz into Butt Fuck Town USA, and he's also gone nude for other projects such as Almost Friends (2016), Wet Hot American Summer (2001), and HAPPY!
Like what you see? Head to Mr. Man for even more uncensored celebrity nudity.