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.

Filmography

• I Will Find You — Danny Ramirez
• 2026The Couple Across the Street — Tom Sullivan
• 2025Another Sweet Christmas — Declan 'Fitzy' Fitzgerald
• Stick — Ron(uncredited)
• 2024Home Sweet Christmas — Declan 'Fitzy' Fitzgerald
• Tracker — Sheriff Gale
• 2023Double Life — Glen Vukovich
• 2023The Blessing Bracelet — Chuck Spencer
• The Last of Us — Double
• The Night Agent — Henry
• 2022#Xmas — Jack Faison
• 2021A Godwink Christmas: Miracle of Love — John Fellman
• Resident Alien — Farmer
• 2021There's Someone Inside Your House — Mr. Sandford
• Upload — Reverend Peyfort
• 2018Garage Sale Mysteries: Picture a Murder — Scott Brady
• 2018Past Malice: An Emma Fielding Mystery — Sherman Arlington
• 2018Rabbit — Leon (as Bill MacDonald)
• 2018Summer of 84 — Sheriff Caldwell
• The Terror — George Nicol
• 2017Concrete Evidence: A Fixer Upper Mystery — Principal Darren Dean
• Riverdale — Principal Featherhead, Warden Norton
• The Good Doctor — Bob Cravens
• Travelers — Gary Holden
• Supergirl — Dr. Kaplan
• 2014The Captive — Frank
• The Flash — Gene Huskk
• Hemlock Grove — Jeargen Knauff
• 2012Cold Blooded — Louis Holland
• 2012Run Rabbit Run — Baby Doll
• 2012The Phantoms — Steve Boucher
• 2010Death Wish — Elvis
• Haven — Boss Mechanic
• Republic of Doyle — Logan Hicks
• Rookie Blue — Buson / Sheldon
• 2010Takedown — Stross Representative
• 2009Desperate Escape — Detective Hanson
• 2009Fragile — Doorman
• 2009Northern Lights — Deputy Otto Gruber
• Stargate Universe — Virgil Biggs
• 2009Storm Seekers — Eli Harder
• The Listener — Matt Collins
• 2008Mail Order Bride — Sherrif
• 2008On the Other Hand, Death: A Donald Strachey Mystery — Jonas Baskin
• 2008Trial by Fire — Trip Crandall
• 2007Alien Agent — Sheriff Devlin
• 2007Hybrid
• 2007White Noise 2: The Light — Dr. Karras
• 2006Absolute Zero — Dempsy
• 2006Final Days of Planet Earth — Cruikshank
• 2006Hollow Man II — Col. Gavin Bishop
• 2006Mount Pleasant — Jack
• Psych — Phil
• 2006Slither — Mr. Strutemyer
• 2006To Have and to Hold — Det. Wilson
• 2005Personal Effects — Arthur Stowell
• Supernatural — Abraham Peterson, Sheriff
• 2005The Colt — Sgt. Woodruff
• 2004A Beachcombers Christmas — Earl Decker
• 2004Shelf Life — Martin
• Stargate Atlantis — Captain Griffin
• 2003Betraying Reason — Hoop
• Mayday — First Officer Dillard
• 2003The Snow Walker — Miner in Bar
• Tru Calling — Neighbour
• 2003Water's Edge — T. Wallace
• The Dead Zone — Cathan Donnegal
• 2002The Rhino Brothers — Sasha Kanachowski
• Smallville — Masterson
• 2000Call of the Wild — The Swede
• Call of the Wild
• 2000Romeo Must Die — Officer
• 2000The Spiral Staircase — Sheriff Bell
• 2000The Virginian — Scipio
• 1999Dudley Do-Right — In the Back
• 1998Blackheart — Boone
• 1998Don't Look Down — Ben
• 1998Goldrush: A Real Life Alaskan Adventure — Chloroformer
• 1998Golf Punks — Phelps (as William Macdonald)
• 1998Rupert's Land — Brad
• 1998The Vigil — George
• 1997Barnone — Mike
• 1997Contagious — Drug Worker
• 1996Gang in Blue — Groat
• Millennium — Agent Nolan
• Poltergeist: The Legacy — Jones
• The Sentinel — Dell
• Sliders — Medical Moonsuit
• The Outer Limits — FBI Special Agent Grant, Gary Rosman, Mugger
• Viper — Harper
• The X-Files — Dr. Oppenheim, Agent Kazanjian, Deputy Buddy Riggs, Officer Trott, Federal Marshall
• 1991Posing: Inspired by Three Real Stories — Evan Stafford
• 1990The Fourth War — MP Corporal
• Quantum Leap — Conductor
• MacGyver — Paramedic