And in that book, there were all the characters listed and who I thought should play those characters.

You believed in me before I even believed in myself.

So thank you for sticking by me.

James Gunn Guardians Galaxy Marvel

Then theres the one-two punch of Bradley Cooper andVin Dieselin voice roles as Rocket andGroot.

Gunn eventually saw the light and found his lovably roguish Guardians team leader.

The rest of the principal players, likePom KlementieffasMantisandKaren GillanasNebulawent on to become memorable fan-favorites.

James Gunn with cast on Guardians of the Galaxy 3 set

Don’t Miss Out on MCU News!

LATEST NEWS

Guardians of the Galaxy 3 Cast: 16 Actors & Characters Confirmed to Appear

Guardians of the Galaxy 3 Cast: 17 Actors & Characters Confirmed to Appear

Bradley Cooper Won’t Voice All of Rocket’s Guardians 3 Scenes, Confirms Director

![Marvel Studios Reveals Every Official ‘New Avenger’ Going To Avengers: Doomsday](https://images.thedirect.com/media/article_thumbnail/the_new_avengers_teams.jpg?imgeng=/w_auto,280 280w)

![Marvel Studios Announces 2 Historic Supervillains In Phase 6](https://images.thedirect.com/media/article_thumbnail/marvel-phase-supervillains.jpg?imgeng=/w_auto,280 280w)

![2025 Superman Movie Will Now Give Clark Kent His Own Enemy (Confirmed)](https://images.thedirect.com/media/article_thumbnail/superman-clark-kent.jpg?imgeng=/w_auto,280 280w)

![Marvel Studios Releases Its First-Ever Venom Symbiote Funko Pop](https://images.thedirect.com/media/article_thumbnail/venom-funko.jpg?imgeng=/w_auto,280 280w)

![Andor Season 2 Just Brought Back 5 Key ‘Rogue One’ Characters (Photos)](https://images.thedirect.com/media/article_thumbnail/andor-rogues.jpg?imgeng=/w_auto,280 280w)

![Max Announces DC’s Next Superhero Show Releasing Before Peacemaker Season 2](https://images.thedirect.com/media/article_thumbnail/dc-peacemaker.jpg?imgeng=/w_auto,280 280w)

![Amazon Prime Video Announces Sequel to Its Biggest Movie Ever](https://images.thedirect.com/media/article_thumbnail/prime-vide-movie.jpg?imgeng=/w_auto,280 280w)

![Marvel Studios Confirms Historic Setting for Phase 6’s First Movie](https://images.thedirect.com/media/article_thumbnail/marvel-studios-phase-settings.jpg?imgeng=/w_auto,280 280w)

![Marvel Shares First Look at Robert Downey Jr. (Doctor Doom) On Avengers: Doomsday Set (Photos)](https://images.thedirect.com/media/article_thumbnail/robert_downey_jr_doctor_doom_haircut.jpg?imgeng=/w_auto,280 280w)

![Thunderbolts: Why Taskmaster Got [Spoilers], Explained by Marvel Director](https://images.thedirect.com/media/article_thumbnail/taskmaster-why.jpg?imgeng=/w_auto,280 280w)