David Hornsby is an Executive Producer of FXX’s original comedy series 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.
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 HBO’s Hello Ladies and Six Feet Under, FX’s Baskets, and Spike TV's faux reality series The Joe Schmo Show. He voices several animated series including Cartoon Network’s upcoming Ben 10 and Nickelodeon's upcoming Welcome to the Wayne.
Hornsby was born in Virginia, grew up in Houston and currently resides in Los Angeles.