10:44:20 PM Nov 5th 2013
Grim in the Adventures of Billy & Mandy The Grim Reaper has a Jamaican accent because the voice actor Greg Eagles is from Jamaica and the creators Maxwell Atoms thought it was comic.
11:30:43 AM Sep 5th 2010
For the Mario and Luigi example. Wasn't it explained somewhere in the franchise that they're Italian?
10:52:13 PM Nov 5th 2013
Interview with the creator Shigeru Miyamoto confirms "Let's put him in New York and he can be Italian." www.content.usatoday.com/communities/gamehunters/post/2010/11/qa-mario-creator-shigeru-miyamoto/1#.Unnm Jvlmg 68