Cast & creator
David Hornsby
Best known for Bones, The West Wing, It's Always Sunny in Philadelphia
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.
15
film credits
39
television credits
41
1994–2026 · acting roles
6.9
average across scored titles
Signature credits
Known for
Across film & television
Filmography (54)
Showing 54 of 54 credits
Bones
Father Harrow
2005
The West Wing
Fred
1999
It's Always Sunny in Philadelphia
Matthew 'Rickety Cricket' Mara
2005It's Always Sunny in Philadelphia
Writer
2005It's Always Sunny in Philadelphia
Executive Producer
2005It's Always Sunny in Philadelphia
Co-Executive Producer
2005It's Always Sunny in Philadelphia
Supervising Producer
2005
ER
Strauss
1994
The Goldbergs
Kyle Schnitz
2013The Goldbergs
Kyle
2013
New Girl
Ed Warner
2011
We Bare Bears
Harry / Additional Voices (voice)
2015
Six Feet Under
Patrick
2001
The Unit
Ricky
2006
Good Girls
Leslie 'Boomer' Peterson
2018
Mythic Quest
David Brittlesbee
2020Mythic Quest
Writer
2020Mythic Quest
Executive Producer
2020Mythic Quest
Director
2020
Fanboy and Chum Chum
Fanboy (voice)
2009Fanboy and Chum Chum
Fanbot (voice)
2009
St. Denis Medical
Harry
2024
The Hawk
Radford
2026
Minority Report
Pre-Crime Public Service Announcer
2002
Random! Cartoons
Fanboy / Kid #2 (voice)
2008
Baskets
Pastor
2016
Dirt
Harold Beckman
2007
Pearl Harbor
Flyer with Murmur
2001
Aliens vs Predator: Requiem
Drew
2007
Christmas with the Kranks
Randy Becker
2004
Flags of Our Fathers
Louis Lowery
2006
Side Quest
Executive Producer
2025
Unsupervised
Joel Zymanski (voice)
2012Unsupervised
Creator
2012
Center of the Universe
Victor
2004
Hello Ladies
Andy
2013
Battle Kitty
Mole Monster (voice)
2022
The Joe Schmo Show
Steve
2003
The Layover
Screenplay
2017
Jake in Progress
Ken
2005
Merry Little Batman
The Joker / Fireman (voice)
2023
How to Be a Gentleman
Andrew Carlson
2011How to Be a Gentleman
Writer
2011How to Be a Gentleman
Creator
2011
Fool's Paradise
Pilot
2023The Mullets
Denny Mullet
2003
Boldly Going Nowhere
2008
A Very Sunny Christmas
Co-Executive Producer
2009
Fanboy
Fanboy (voice) / Kid #2 (voice)
2008
Pretty Bird
Kenny Owenby
2008Boldly Going Nowhere
Lt. Lance Brigsby
Straight Eye: The Movie
Daryl
2004
Earmouse and Bottle
Earmouse
2014Born Loser
Warren
2001