Appearance: Guardians Of The Galaxy (2014)
Creator: Stan Lee, Jack Kirby, Dick Ayers
Performer: Vin Diesel/ Krystian Godlewski
Defining moment: His return midcredits, getting his groove on as a sapling.
Fascinating fact: A Flora colossus from Planet X, Groot made his debut 1960’s Tales to Astonish #13. Far from heroic, proto Groot attempted to abduct humans for scientific experimentation.