Charlie Day on Danny Devito, Green Man, and Kitten Mittens 8.73K Whitney Jefferson 12/07/10 12:00AM Filed to: Conan Conan Charlie Day TV Always sunny danny devito Green man Video tweet Tonight on Conan, Charlie Day talked about the writing process behind It's Always Sunny in Philadelphia and a fake script (about Frank being repeatedly raped in prison) they sent to Danny Devito on April Fool's Day.