Dayman was Charlie Kelly's second serious attempt at writing music following The Nightman. It was inspired by Dennis ripping down Charlie's curtains (which. Mac is initially pleased with playing the little boy and the Dayman, which makes Dennis, who is playing the Nightman jealous. The two switch parts. Frank is over . Charlie Day, Kaitlin Olson, and Artemis Pebdani in It's Always Sunny in Charlie Kelly: Well, the Lead Boy becomes the Dayman when he defeats the Nightman.
"It's Always Sunny in Philadelphia" Sweet Dee's Dating a Retarded Person (TV Episode ) Charlie Kelly: Day, Day-man. Dennis Reynolds: Dayman?. Day Man Lyrics: Day Man / Aaah / Fighter of the Night Man / Aaah / Champion of the Sun / Aaah / You're a Master of karate / And friendship / For everyone.