Musician and film director Rob Zombie has a voice role in Guardians of the Galaxy Vol. 2, as confirmed by Zombie himself via his Instagram account.
Zombie had a voice role in the first Guardians movie as the Ravager Navigator – the voice heard inside the Milano during the first act of the movie.
Phase 3 will introduce new superheroes, such as Captain Marvel, and will finally bring the Avengers and the Guardians of the galaxy together in Avengers: Infinity War.
Before both teams join forces to defeat Thanos, the Guardians will come back in Guardians of the Galaxy Vol. 2, with new characters joining the space misfits and new menaces to deal with.