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)
Clare McConnell Effie Crabtree Effie Crabtree See fewer	Star Trek: Discovery (2017)
Peter Stebbings James Pendrick James Pendrick See fewer	Defendor (2009)
Dan Beirne Ian Vagle Ian Vagle See fewer	Ginny & Georgia (2021)
Steffi DiDomenicantonio Melody Struthers Melody Struthers See fewer	Crawford (2018)
Rod Wilson Mason Bartman Mason Bartman See fewer	Open Range (2003)
Chris Hadfield Chris Hadfield Chris Hadfield See fewer	Atop the Fourth Wall (2008)
Hannah Spear Ernestine Sandford Ernestine Sandford See fewer	Murdoch Mysteries (2008)
Sean Rey Kenvyn Wiley Kenvyn Wiley See fewer	Far Cry 6 (2021)
Alison Smiley Amateur Astronomer Amateur Astronomer See fewer	Mrs. America (2020)
Hannah Spear Ernestine Sandford Ernestine Sandford See fewer	Star Trek: Discovery (2017)