David Hornsby is an executive producer of It's Always Sunny in Philadelphia where he recurs in the role of “Rickety Cricket.” He’s been with the show since the second season. Hornsby has also created and starred in his own shows: the CBS half-hour How To Be a Gentleman, the FX animated series Unsupervised and NBC’s Mission Control. He’s written on Netflix’s Big Mouth and currently recurs on the NBC show Good Girls. Hornsby is also the executive producer and a series regular on the upcoming Apple TV+ show Mythic Quest.
Hornsby co-wrote the film Layover, starring Kate Upton and directed by William H. Macy. He starred opposite Paul Giamatti and Billy Crudup in Pretty Bird and was featured in Clint Eastwood's Flags of Our Fathers, Steven Spielberg's Minority Report as well as Alien vs. Predator: Requiem. He’s appeared in numerous television shows including New Girl on FOX, HBO’s Hello Ladies and Six Feet Under, FX’s Baskets and Spike TV's faux reality series The Joe Schmo Show. Hornsby has voiced several animated series including Cartoon Network’s Ben 10 and Nickelodeon’s Welcome to the Wayne.
Hornsby was born in Virginia, grew up in Houston and currently resides in Los Angeles.