Name	Known for
Yannick Bisson Detective William Murdoch Detective William Murdoch See fewer	Murdoch Mysteries (2008)
Helene Joy Dr. Julia Ogden (as Hélène Joy) Dr. Julia Ogden (as Hélène Joy) See fewer	Murdoch Mysteries (2008)
Thomas Craig Inspector Thomas Brackenreid Inspector Thomas Brackenreid See fewer	Murdoch Mysteries (2008)
Jonny Harris Constable George Crabtree Constable George Crabtree See fewer	Still Standing (2015)
Shanice Banton Violet Hart Violet Hart See fewer	Race (I) (2016)
Lachlan Murdoch Constable Henry Higgins Constable Henry Higgins See fewer	Cheaters (2002)
Clare McConnell Effie Newsome Effie Newsome See fewer	Star Trek: Discovery (2017)
James McGowan Dr. Forbes Dr. Forbes See fewer	Total Recall (I) (2012)
Sebastian Pigott Dr. Dixon Dr. Dixon See fewer	The Order (I) (2024)
Marc Senior Robert Parker Robert Parker See fewer	Grease: Rise of the Pink Ladies (2023)
Michael Rhoades Lionel Armstrong Lionel Armstrong See fewer	Hollywoodland (2006)
George Masswohl Cecil Vance Cecil Vance See fewer	The Hurricane (1999)
Anthony Gerbrandt Quinn Quinn See fewer	Warehouse 13 (2009)
Sean James Lee Seamus Seamus See fewer	211 (2018)
Marie Ward Lucille Fitzgerald Lucille Fitzgerald See fewer	The Marijuana Conspiracy (2020)
Timothy Allen Samuel Fitzgerald Samuel Fitzgerald See fewer	Murdoch Mysteries (2008)
Billy Parrott Mayor Mayor See fewer	The Expanse (2015)
Steve Rizzo Man Man See fewer	Love Charles, a Sic City Story (2017)