Last August, director James Gunn confirmed that Vin Diesel will return to provide the voice of Groot in Guardians of the Galaxy Vol. 2. Some fans wondered if that would even be necessary, since Groot only says one thing repeatedly, "I am Groot," but then we also learned that there is a "secret script" which only Vin Diesel and James Gunn possess, which reveals the meaning of each different incarnation of the "I am Groot" line. Fans have also wondered if the actor's voice will change now that Groot has become Baby Groot, and today we have our answer.

James Gunn took to Twitter yesterday, revealing what has been his most-asked question about Guardians 2 from the fans, regarding how the Baby Groot voice will be deeper than the full-grown Groot's voice. The director revealed that Vin Diesel is 'an actor capable of doing all sorts of voices,' essentially confirming that Baby Groot will indeed sound much different than the adult Groot. James Gunn also confirmed that Baby Groot doesn't grow up in this sequel. When a fan asked if we'd be seeing Baby Groot through "most of the movie," the director responded that "Most (of the movie) would likely be an understatement."

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The first trailer for Guardians of the Galaxy Vol. 2 debuted at Comic-Con back in July, but it still hasn't been released to the public quite yet. That trailer didn't reveal Baby Groot's new voice according to descriptions of the footage from the Hall H presentation. So we'll have to wait and see when Baby Groot's new voice will be unveiled. The Comic-Con footage did reveal perhaps the sequel's biggest secret, the identity of Star-Lord's father.

Director James Gunn has said multiple times in the past that Guardians of the Galaxy 2 will reveal who Star-Lord's dad is, and that it won't be the same character as in the comics, J'son. The trailer revealed that Ego the Living Planet is actually Star-Lord's father, but there is still very little else we know about this character. The trailer revealed that Ego had built a human form for himself.

Chris Pratt (Peter Quill), Zoe Saldana (Gamora), Dave Bautista (Drax), Vin Diesel (Groot), Bradley Cooper (Rocket Raccoon), Karen Gillan (Nebula), Michael Rooker (Yondu) and Sean Gunn (Kraglin) reprise their roles from the original Guardians of the Galaxy. New additions include Pom Klementieff as Mantis, Chris Sullivan as Taserface, Elizabeth Debicki as Ayesha, Tommy Flanagan as Tullk and Nathan Fillion as Simon Williams. Take a look at James Gunn's tweets below, and stay tuned for more on Guardians of the Galaxy Vol. 2, in theaters May 5, 2017.