William MacDonald
Actor
Active 1985–present
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.
Filmography
I Will Find You (2026) — Danny RamirezStick (2025) — Ron(uncredited)Another Sweet Christmas (2025) — Declan 'Fitzy' FitzgeraldThe Couple Across the Street (2026) — Tom SullivanRiverdale (2017) — Warden Norton · Principal FeatherheadThe Good Doctor (2017) — Bob CravensSupernatural (2005) — Sheriff · Abraham PetersonThe Last of Us (2023) — DoubleThe Flash (2014) — Gene HuskkSmallville (2001) — MastersonThe X-Files (1993) — Federal Marshall · Officer Trott · Deputy Buddy Riggs · Agent Kazanjian · Dr. OppenheimSupergirl (2015) — Dr. KaplanStargate Atlantis (2004) — Captain GriffinUpload (2020) — Reverend PeyfortThe Night Agent (2023) — HenryPsych (2006) — PhilResident Alien (2021) — FarmerQuantum Leap (1989) — ConductorMacGyver (1985) — ParamedicTravelers (2016) — Gary HoldenThe Terror (2018) — George NicolSummer of 84 (2018) — Sheriff CaldwellStargate Universe (2009) — Virgil BiggsSlither (2006) — Mr. Strutemyer