Yannick Bisson (born May 16, 1969) is a Canadian film and television actor best known to international audiences as the star of Murdoch Mysteries.

Yannick Bisson plays as Inspector William Murdoch, Detective William Murdoch in Murdoch Mysteries.
Yannick Bisson is the top #1 member of the cast and appears in 212 episodes.

Hélène Joy (born 21 October 1978) is an Australian–Canadian television actress. Her credits include roles in the television series MVP, Durham County, The Secret World of Og, An American in Canada, ReGenesis, Pearlie, and Murdoch Mysteries. Joy was born and raised in Australia, studying at the Western Australian Academy of Performing Arts in Perth. She subsequently joined the Bell Shakespeare Company in Sydney and the Melbourne Theatre Company, and had minor roles in Australian television series such as Water Rats, Big Sky and Snowy River: The McGregor Saga, before moving to Vancouver.

Helene Joy plays as Dr. Julia Ogden in Murdoch Mysteries.
Helene Joy is the top #2 member of the cast and appears in 212 episodes.

Jonny Harris is a Canadian actor and comedian.

Jonny Harris plays as Constable George Crabtree in Murdoch Mysteries.
Jonny Harris is the top #3 member of the cast and appears in 212 episodes.

Lachlan Murdoch plays as Constable Henry Higgins in Murdoch Mysteries.
Lachlan Murdoch is the top #4 member of the cast and appears in 212 episodes.

Thomas Craig is a British actor best known for his roles in TV programmes such as Murdoch Mysteries, Common as Muck, Where The Heart Is and Coronation Street. He also starred in the Ken Loach film, The Navigators

Thomas Craig plays as Inspector Thomas Charles Brackenreid in Murdoch Mysteries.
Thomas Craig is the top #5 member of the cast and appears in 212 episodes.

Georgina Reilly is a British-Canadian actress born in Surrey, England.

Georgina Reilly plays as Dr. Emily Grace in Murdoch Mysteries.
Georgina Reilly is the top #6 member of the cast and appears in 100 episodes.

Jonathan Watton is an actor and cinematographer, known for Agent double (2007), Maps to the Stars (2014) and They Come Back (2007).

Jonathan Watton plays as Dr. Darcy Garland in Murdoch Mysteries.
Jonathan Watton is the top #7 member of the cast and appears in 39 episodes.

Mouna Traoré is a Canadian actress, writer and producer born and raised in Toronto.

Mouna Traoré plays as Rebecca James in Murdoch Mysteries.
Mouna Traoré is the top #8 member of the cast and appears in 38 episodes.

Paul Rhys (born 19 Docember 1963) is a Welsh television, film and theatre actor. Rhys studied at RADA in London, leaving with the Bancroft Gold Medal in 1987. While there, he obtained his first major screen role, in "Absolute Beginners" (1986). Since then he has seldom been off the stage and screen. His first US exposure was when legendary American film director Robert Altman cast Rhys, who was then still a student, as Theo van Gogh in "Vincent and Theo" opposite Tim Roth as Vincent.

Paul Rhys plays as Dr. Llewllyn Francis in Murdoch Mysteries.
Paul Rhys is the top #9 member of the cast and appears in 13 episodes.