William Stanford Davis

Acting·August 7, 1951 — 74 years old·St. Louis, Missouri, USA

William Stanford Davis (born August 7, 1951) is an American actor. He is best known for his role as school custodian Mr. Johnson on the ABC sitcom Abbott Elementary (2021–present).

Known For

The Big Bang Theory

Bones

Shameless

City of Angels

Desperate Housewives

Snowpiercer

CSI: Crime Scene Investigation

2000·7.6

A Lot Like Love

2005·6.8

It's Always Sunny in Philadelphia

2005·8.2

Chicago Med

2015·8.3

My Name Is Earl

2005·7.6

Terminator: The Sarah Connor Chronicles

2008·7.5

Filmography · 76

—Damn WhiteyGeorge 2026UndercardBaba T 2025Diary of a Wimpy Kid: The Last StrawTroopmaster Barrett (voice)2025Side QuestTVEarl 2022The Jennifer Hudson ShowTVSelf - Guest 2022SherriTVSelf - Guest 2021Abbott ElementaryTVMr. Johnson 2021A Holiday ChanceBernie 2021SwaggerTVCoach Max 2020Perry MasonTVDaniel Madison 2020SnowpiercerTVMr. Riggs 2019Truth Be ToldTVAgathia 2019Adopt a HighwayHatty 2018Holly DayThaddeus 2018Light as a FeatherTVOld Man 2018Dead Women WalkingWarden 2018Please Stand ByCreed (uncredited)2017Handsome: A Netflix Mystery MovieLester 2016A Winter RoseStage Manager 2016Cardboard BoxerJazzy 2016So B. ItMan at Cab Co.2016You Can Never Really Know SomeoneMan 2 (Bible Study Member)2015When Duty CallsClyde Pierce 2015Chicago MedTVEd Brennan 2015Guns for HireLiquor Store Clerk 2013L.A. SuperheroesHal 2013Ray DonovanTVPotato Pie 2012Love, GloriaKenny 2012The FinderTVEarl 2011Harry's LawTVKareem Anderson 2011ShamelessTVConrad 2010Barry MundayGreens Keeper 2009Accused at 17Detective Gilson 2009The MiddleTVProjectionist 2009Across the HallCustodian 2008Terminator: The Sarah Connor ChroniclesTVPastor Jonas 2007Hallowed GroundTruck Driver 2007The Big Bang TheoryTVDry Cleaner 2007Saving GraceTVGroup member at party 2006SharkTVSonny Gore 2006Studio 60 on the Sunset StripTVFloor Manager 2006Sons & DaughtersTVCook 2005My Name Is EarlTVNeighbor 2005BonesTVFloyd Barber 2005It's Always Sunny in PhiladelphiaTVMr. Johnson 2005The CloserTVHomeless Man 2005Self MedicatedGabe 2005A Lot Like LovePriest 2005Urban Evil: Trilogy of Fear 2004Desperate HousewivesTVWilliam 2004LAXTVEngineer Dietrich 2004The Spirit HunterGabe 2004Subway CafeJerome Mayfield 2004CleanFoster 2003Cold CaseTVDeante 2003Jimmy Kimmel Live!TVSelf - Guest 2002American DreamsTVJoe 2002BulldogLeon 2002The ShieldTVDeon 2001The GuardianTVBrian 2001James DeanTrain Conductor 2001The Red Boot DiariesLeon 2000Curb Your EnthusiasmTVChulu Porter 2000The DistrictTVMr. Gillis 2000CSI: Crime Scene InvestigationTVMechanic 2000Strong MedicineTVDoug - Aneesha's Boss 2000The Prophecy 3: The AscentPortly Coroner 1999RagdollBig Pere 1999AngelTVSecurity Guard 1998City of AngelsConstruction Foreman 1998Primary ColorsJack Mandela Washington 1997Running TimeBuzz 1997Ally McBealTVJim 1997The PracticeTVClarence Barnett 1994Touched by an AngelTVDoug 1994Sister, SisterTVRev. Tatum