Charlie Day, star and co-creator of the FX comedy "It's Always Sunny in Philadelphia" and wife Mary Elizabeth Ellis are the proud parents of a baby boy.

People.com reports that the baby, named Russell Wallace Day, was born Thursday night in Los Angeles. The new parents told People, "We are overjoyed and overwhelmed at the amount of love that ushered our baby into the world."

Day and Ellis have been married for five years.