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David Hornsby

Known for acting · Born 1 December 1975 · 50 · Newport News, Virginia, USA

46 credits

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.

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Known for

It's Always Sunny in Philadelphia

2005

Fanboy and Chum Chum

2009

Mythic Quest

2020

Good Girls

2018

The Layover

2017

Merry Little Batman

2023

Unsupervised

2012

Six Feet Under

2001

Jake in Progress

2005

The Hawk

2026

How to Be a Gentleman

2011

The Goldbergs

2013

Acting (39)

2026The HawkRadford · 10 episodesSeries
2024St. Denis MedicalHarrySeries
2023Merry Little BatmanThe Joker / Fireman (voice)Film
2023Fool's ParadisePilotFilm
2022Battle KittyMole Monster (voice) · 9 episodesSeries
2020Mythic QuestDavid Brittlesbee · 40 episodesSeries
2018Good GirlsLeslie 'Boomer' Peterson · 15 episodesSeries
2016BasketsPastor · 2 episodesSeries
2015We Bare BearsHarry / Additional Voices (voice)Series
2014Earmouse and BottleEarmouseFilm
2013The GoldbergsKyle Schnitz · 2 episodesSeries
2013Hello LadiesAndy · 2 episodesSeries
2012UnsupervisedJoel Zymanski (voice) · 13 episodesSeries
2011New GirlEd WarnerSeries
2011How to Be a GentlemanAndrew Carlson · 9 episodesSeries
2009Fanboy and Chum ChumFanboy (voice) · 100 episodes, Fanbot (voice)Series
2008Pretty BirdKenny OwenbyFilm
2008Random! CartoonsFanboy / Kid #2 (voice)Series
2008Boldly Going NowhereSeries
2008FanboyFanboy (voice) / Kid #2 (voice)Film
2007Aliens vs Predator: RequiemDrewFilm
2007DirtHarold BeckmanSeries
2006Flags of Our FathersLouis LoweryFilm
2006The UnitRickySeries
2005BonesFather HarrowSeries
2005It's Always Sunny in PhiladelphiaMatthew 'Rickety Cricket' Mara · 27 episodesSeries
2005Jake in ProgressKen · 21 episodesSeries
2004Christmas with the KranksRandy BeckerFilm
2004Center of the UniverseVictor · 3 episodesSeries
2004Straight Eye: The MovieDarylFilm
2003The Joe Schmo ShowSteve · 8 episodesSeries
2003The MulletsDenny Mullet · 11 episodesSeries
2002Minority ReportPre-Crime Public Service AnnouncerFilm
2001Pearl HarborFlyer with MurmurFilm
2001Six Feet UnderPatrick · 4 episodesSeries
2001Born LoserWarrenFilm
1999The West WingFredSeries
1994ERStraussSeries
—Boldly Going NowhereLt. Lance BrigsbyFilm

Creator (1)

2012UnsupervisedCreatorSeries

Production (2)

2025Side QuestExecutive ProducerSeries
2009A Very Sunny ChristmasCo-Executive ProducerFilm

Writing (4)

2020Mythic QuestWriter, Executive Producer, DirectorSeries
2017The LayoverScreenplayFilm
2011How to Be a GentlemanWriter, CreatorSeries
2005It's Always Sunny in PhiladelphiaWriter, Executive Producer, Co-Executive Producer, Supervising ProducerSeries