William MacDonald
Acting
William MacDonald is a prolific Canadian actor and producer known for extensive work in television, film, and over 80 theatrical productions. He is recognized for roles in Riverdale, The Good Doctor, Supergirl (Dr. Kaplan), and The Flash (Gene Huskk).
He is frequently confused with fellow Canadian actor Bill MacDonald, as both share similar credits and guest-star in similar procedural dramas.
Known For
Filmography · 94
2026I Will Find YouTVDanny Ramirez2026The Couple Across the StreetTom Sullivan2025Another Sweet ChristmasDeclan 'Fitzy' Fitzgerald2025StickTVRon(uncredited)2024Home Sweet ChristmasDeclan 'Fitzy' Fitzgerald2024TrackerTVSheriff Gale2023Double LifeGlen Vukovich2023The Blessing BraceletChuck Spencer2023The Night AgentTVHenry2023The Last of UsTVDouble2022#XmasJack Faison · Jack2021A Godwink Christmas: Miracle of LoveJohn Fellman2021There's Someone Inside Your HouseMr. Sandford2021Resident AlienTVFarmer2020UploadTVReverend Peyfort2018RabbitLeon (as Bill MacDonald)2018Garage Sale Mysteries: Picture a MurderScott Brady2018Summer of 84Sheriff Caldwell2018The TerrorTVGeorge Nicol2018Past Malice: An Emma Fielding MysterySherman Arlington2017The Good DoctorTVBob Cravens2017Concrete Evidence: A Fixer Upper MysteryPrincipal Darren Dean2017RiverdaleTVPrincipal Featherhead · Warden Norton2016TravelersTVGary Holden2015SupergirlTVDr. Kaplan2014The FlashTVGene Huskk2014The CaptiveFrank2013Hemlock GroveTVJeargen Knauff2012The PhantomsSteve Boucher2012Cold BloodedLouis Holland2012Run Rabbit RunBaby Doll2010Death WishElvis2010HavenTVBoss Mechanic2010Rookie BlueTVBuson / Sheldon2010TakedownStross Representative2010Republic of DoyleTVLogan Hicks2009Desperate EscapeDetective Hanson2009Stargate UniverseTVVirgil Biggs2009The ListenerTVMatt Collins2009Storm SeekersEli Harder2009Northern LightsDeputy Otto Gruber2009FragileDoorman2008Mail Order BrideSherrif2008Trial by FireTrip Crandall2008On the Other Hand, Death: A Donald Strachey MysteryJonas Baskin2007Hybrid2007White Noise 2: The LightDr. Karras2006To Have and to HoldDet. Wilson2006Mount PleasantJack2006PsychTVPhil2006Hollow Man IICol. Gavin Bishop2006SlitherMr. Strutemyer2006Final Days of Planet EarthCruikshank2006Absolute ZeroDempsy2005SupernaturalTVAbraham Peterson · Sheriff2005Personal EffectsArthur Stowell2005The ColtSgt. Woodruff2004A Beachcombers ChristmasEarl Decker2004Shelf LifeMartin2004Stargate AtlantisTVCaptain Griffin2003Tru CallingTVNeighbour2003Water's EdgeT. Wallace2003The Snow WalkerMiner in Bar2003MaydayTVFirst Officer Dillard2003Betraying ReasonHoop2002The Rhino BrothersSasha Kanachowski2002The Dead ZoneTVCathan Donnegal2001SmallvilleTVMasterson2000The Spiral StaircaseSheriff Bell2000Call of the WildTV2000Romeo Must DieOfficer2000The VirginianScipio2000Call of the WildThe Swede1999Dudley Do-RightIn the Back1998Don't Look DownBen1998The VigilGeorge1998Rupert's LandBrad1998Golf PunksPhelps (as William Macdonald)1998Goldrush: A Real Life Alaskan AdventureChloroformer1998BlackheartBoone1997ContagiousDrug Worker1997BarnoneMike1996MillenniumTVAgent Nolan1996Gang in BlueGroat1996Poltergeist: The LegacyTVJones1996The SentinelTVDell1995The Outer LimitsTVFBI Special Agent Grant · Gary Rosman · Mugger1995SlidersTVMedical Moonsuit1994ViperTVHarper1993The X-FilesTVDr. Oppenheim · Agent Kazanjian · Deputy Buddy Riggs · Officer Trott · Federal Marshall1991Posing: Inspired by Three Real StoriesEvan Stafford1990The Fourth WarMP Corporal1989Quantum LeapTVConductor1985MacGyverTVParamedic