Well there's Canada (Matthew Williams) from
Hetalia, and since Marco's planning to make submods set after WW2, modern Canadian characters such as Terrance and Phillip from
South Park & Bob and Doug Mckenzie from
Strange Brew/
SCTV could also appear.
The TVTropes page for fictional depictions of Canada lists lots of stuff that can be included here.
You may be looking for one of the following: Courteous Canadian: Stereotypical depictions of Canadians as polite and friendly. Crass Canuck: Canadians who are rude and brash. Moose and Maple Syrup: Stereotypical depictions of Canada and the …
tvtropes.org
Speaking of
Hetalia, can it be put here?