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)
Lachlan Murdoch Constable Henry Higgins Constable Henry Higgins See fewer	Cheaters (2002)
Daniel Maslany Detective Llewellyn Watts Detective Llewellyn Watts See fewer	Impulse (2018)
Shanice Banton Violet Hart Violet Hart See fewer	Degrassi: The Next Generation (2001)
Clare McConnell Effie Crabtree Effie Crabtree See fewer	Star Trek: Discovery (2017)
Arwen Humphreys Margaret Brackenreid Margaret Brackenreid See fewer	Murdoch Mysteries (2008)
Mark Taylor Isaiah Buchanan Isaiah Buchanan See fewer	Cinderella Man (2005)
Samantha Walkes Cassiopeia Bright Cassiopeia Bright See fewer	Orphan: First Kill (2022)
Ben Sanders Inspector Edwards Inspector Edwards See fewer	Frankie Drake Mysteries (2017)
Sebastian Spence Allen Templeton Allen Templeton See fewer	First Wave (1998)
Dana Puddicombe Mrs. Langley Mrs. Langley See fewer	Band Ladies (2020)
Laurie Murdoch Melvin Banks Melvin Banks See fewer	Spotlight (I) (2015)
Jamie Robinson Mr. Talman Mr. Talman See fewer	21 Black Futures (2021)
Carson Durven Hotel Clerk Hotel Clerk See fewer	Narc (2002)
Kenzie Delo Constable Tucker Constable Tucker See fewer	Titans (I) (2018)
Justin Miller Man at Party Man at Party See fewer	Murdoch Mysteries (2008)