IT CAME FROM THE NORTH

26 entertainers who are / were actually Canadian:

1 Pamela Anderson
2 Paul Anka
3 Dan Aykroyd
4 Raymond Burr
5 John Candy
6 Jim Carrey
7 Kid Creole
8 Yvonne de Carlo
9 Michael J Fox
10 Brendan Fraser
11 Margot Kidder
12 Lois Maxwell
13 Rick Moranis
14 Alanis Morissette
15 Mike Myers
16 Leslie Nielsen
17 Matthew Perry
18 Christopher Plummer
19 Jason Priestley
20 Keanu Reeves
21 Robbie Robertson
22 William Shatner
23 Homer Simpson
24 Donald Sutherland
25 Meg Tilly
26 Shania Twain

(NB I've left out non-entertainers and those who everybody knows is Canadian)