We've seen Adult Groot in the first Guardians of the Galaxy movie, Baby Groot in the sequel, and Teen Groot in Avengers: Infinity War and Endgame. What stage will Groot be in for the third Guardians film? It's supposed to take place a few years after Endgame (and Thor: Love and Thunder, in which we may get a Teen Groot appearance). It will be interesting to see the personality tweaks that he will be given.