Whoopi Goldberg, LeVar Burton to Guest-Star on Disney's 'Miles From Tomorrowland' (Exclusive)

Whoopi Goldberg and LeVar Burton are among the guest stars set to appear on the second season of Disney Junior's intergalactic animated series Miles From Tomorrowland.

Jonathan Frakes and Ginger Zee also will guest-star on season two, which is set to debut June 20 at 9 a.m. on the Disney Channel. (It also will be available on the Disney Junior app starting June 13.)

Goldberg, Burton and Frakes are all Star Trek: The Next Generation alums. Goldberg will play creative tech genius The GameMaster, Burton is set as Galactic School teacher Dr. Consilium, and Frakes will voice Miles' paternal grandfather. They will appear in separate episodes.

Good Morning America chief meteorologist and Dancing With the Stars finalist Zee will voice Dr. Zephyr Skye, Tomorrowland's leading meteorologist.

The series — which employs consultants from NASA, NASA's Jet Propulsion Lab, Google and the Space Tourism Society — follows the outer space missions of young adventurer Miles Callisto and his family as they work together to help connect the galaxy on behalf of the Tomorrowland Transit Authority.

The new season finds Miles utilizing his newfound Galactech power mode, which enhances the Callistos' vehicles, gadgets and space suits, allowing Miles to take on more daring missions with his supercharged Blastboard and robo-ostrich best friend Merc. With these augmented abilities, Miles must take the lead in a variety of challenging adventures, including exploring different planets, encountering new aliens and venturing out even further into the universe.

The series stars Olivia Munn, Tom Kenny, Justin Felbinger, Fiona Bishop and Dee Bradley Baker. Other recurring guest stars include Adrian Grenier, Mark Hamill, George Takei, Bill Nye, Wil Wheaton, Alton Brown and Brenda Song.

The series, a production of Wild Canary Films in association with Disney Junior, is created and executive produced by Sascha Paladino. Paul Demeyer is supervising director.

Watch an exclusive clip from the upcoming season above.

 Whoopi Goldberg, left, and LeVar Burton (Photo: Roy Rochlin/FilmMagic; Bryan Bedder/Getty Images)