
David Hornsby
Acting
David Alan Hornsby (born December 1, 1975) is an American actor, screenwriter, and producer. He is best known for a recurring role as defrocked priest Matthew "Rickety Cricket" Mara on the FX comedy series It's Always Sunny in Philadelphia, for which he also writes and co-produces. Hornsby also had a regular role on the NBC comedy-crime series Good Girls (2018–2020). He is also the voice of Fanboy in the Nickelodeon animated TV series Fanboy & Chum Chum.

Merry Little Batman
The Joker / Fireman (voice)

Fool's Paradise
Pilot

Earmouse and Bottle
Earmouse

Pretty Bird
Kenny Owenby

Fanboy
Fanboy (voice)

Aliens vs Predator: Requiem
Drew

Flags of Our Fathers
Louis Lowery

Christmas with the Kranks
Randy Becker
Straight Eye: The Movie
Daryl

Minority Report
Pre-Crime Public Service Announcer
Born Loser
Warren

Pearl Harbor
Flyer with Murmur







