Charlie Day. Producer: It's Always Sunny in Philadelphia. Charles Peckham Day was born in New York City, NY, and raised in Middletown, Rhode Island. His parents are both music teachers - his mother, Mary (Peckham), is a piano teacher, and his father, Dr. Thomas Charles Day, was a professor of music at Salve Regina University in Newport, Rhode Island. Charlie plays both piano and guitar. He has Italian (from his...