Groot is so cute 🥹 🎬 Groot is a beloved sentient, tree-like being from the Marvel Cinematic Universe, first appearing in Guardians of the Galaxy (2014), voiced by Vin Diesel. A member of the Flora colossus species from Planet X, Groot is known for only saying “I am Groot,” though his tone and gestures convey deeper meaning to close friends like Rocket. Loyal, gentle, and selfless, he often balances humor with emotional depth. In the MCU, Groot begins as Rocket’s partner and joins Star-Lord, Ga