Let us take Murdoch Mysteries, as an example.
Murdoch is played by Yannick Bisson. By the tone of his skin, he is clearly a many generation Inuit or Indian and of course, with his name it is obvious where his heritage is.
George Crabtree is played by the very funny Jonny Harris, who in my opinion, makes the programme and without him, it would be dull. He is from Newfoundland, hence the Irish accent.
Why do both these actors just call themselves Canadian?
The UK is made up of four parts, England, Wales, Scotland and Northern Island.
But if you ask most people who are not from England, they will say that they are Welsh, Scottish or Irish.
Why is that in the continent over the pond, they just ditch their heritage and describe themselves as Canadian or yanks. After all, in the USA, all of the states are as autonomous as they are over here; so why the difference?