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)
Daniel Maslany Detective Llewellyn Watts Detective Llewellyn Watts See fewer	Impulse (2018)
Shanice Banton Violet Hart Violet Hart See fewer	Race (I) (2016)
Lachlan Murdoch Constable Henry Higgins Constable Henry Higgins See fewer	Cheaters (2002)
Siobhan Murphy Ruth Higgins-Newsome Ruth Higgins-Newsome See fewer	Cross (2024)
Clare McConnell Effie Newsome Effie Newsome See fewer	Star Trek: Discovery (2017)
Arwen Humphreys Margaret Brackenreid Margaret Brackenreid See fewer	Murdoch Mysteries (2008)
Michelle Giroux Gwen Luff Gwen Luff See fewer	BlackBerry (2023)
Eric Woolfe Elmer Burnside Elmer Burnside See fewer	Fatman (2020)
Heather Sanderson Mary Farn Mary Farn See fewer	The Umbrella Academy (2019)
Pat Thornton Driver Driver See fewer	Hotbox (2009)
Tianna SwamiNathan Maureen Maureen See fewer	Murdoch Mysteries (2008)
Leonardo Mallinos Charlie Charlie See fewer	House/Wife
Breeze Dango Tammy Tammy See fewer	Henry Danger: The Movie (2025)
Mike Jackson Peter Smith Peter Smith See fewer	The Producers (2005)
Kirstin Rae Hinton Mom Mom See fewer	Partners in Action (2002)
Jayden Kirton Paul Jr. Paul Jr. See fewer	Culprits (2023)
Kyle James Butler John Maitland (uncredited) John Maitland (uncredited) See fewer	The Man from Toronto (2022)