Wolverine (Marvel Comics)
First appearance: The Incredible Hulk #180 (1974)
Created by Roy Thomas, Len Wein, and John Romita, Sr.
This one couldn’t just be left out, you know. He’s been a member of 7,641 super-hero teams, he’s starred in multiple hit films, he’s the most popular member of the X-Men. His first appearance was him as a Canadian Agent who had to take on the Hulk and Wendigo. When the X-Men team was relaunched as an international team of heroes, Wolverine was the perfect Canadian!
Via Den of Geek