Acting · Newport News, Virginia, USA · Born December 1, 1975
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.
TVThe Hawk
2026
as Radford
TVSt. Denis Medical
2024
as Harry
MovieMerry Little Batman
2023
as The Joker / Fireman (voice)
MovieFool's Paradise
2023
as Pilot
TVBattle Kitty
2022
as Mole Monster (voice)
TVMythic Quest
2020
as David Brittlesbee
TVGood Girls
2018
as Leslie 'Boomer' Peterson
TVBaskets
2016
as Pastor
TVWe Bare Bears
2015
as Harry / Additional Voices (voice)
MovieEarmouse and Bottle
2014
as Earmouse
TVHello Ladies
2013
as Andy
TVThe Goldbergs
2013
as Kyle Schnitz
TVUnsupervised
2012
as Joel Zymanski (voice)
TVHow to Be a Gentleman
2011
as Andrew Carlson
TVNew Girl
2011
as Ed Warner
TVFanboy and Chum Chum
2009
as Fanboy (voice)
TVRandom! Cartoons
2008
as Fanboy / Kid #2 (voice)
TVBoldly Going Nowhere
2008
MoviePretty Bird
2008
as Kenny Owenby
MovieFanboy
2008
as Fanboy (voice) / Kid #2 (voice)
MovieAliens vs Predator: Requiem
2007
as Drew
TVDirt
2007
as Harold Beckman
MovieFlags of Our Fathers
2006
as Louis Lowery
TVThe Unit
2006
as Ricky
TVBones
2005
as Father Harrow
TVIt's Always Sunny in Philadelphia
2005
as Matthew 'Rickety Cricket' Mara
TVJake in Progress
2005
as Ken
MovieChristmas with the Kranks
2004
as Randy Becker
TVCenter of the Universe
2004
as Victor
Straight Eye: The Movie
2004
as Daryl
The Mullets
2003
as Denny Mullet
TVThe Joe Schmo Show
2003
as Steve
MovieMinority Report
2002
as Pre-Crime Public Service Announcer
Born Loser
2001
as Warren
TVSix Feet Under
2001
as Patrick
MoviePearl Harbor
2001
as Flyer with Murmur
TVThe West Wing
1999
as Fred
TVER
1994
as Strauss
