Finally we have Rocket Raccoon.

He made his debut in a sci-fi story by Bill Mantlo and Keith Giffen in 1976's Marvel Preview #7...

but wasn't known as Rocket Raccoon (and didn't have his current personality) until he made his color debut in 1982's Incredible Hulk #271 by Mantlo and Sal Buscema...

There's an Event Leviathan Clue in Legion of Super-Heroes: DC Millennium #1