Exclusive Image! Mark Hamill As Gadfly Garnett On Disney Junior's Miles From Tomorrowland

Disney has provided ComicBook.com with an exclusive image of Mark Hamill's new character Gadfly Garnett, who will appear on the "Who Stole the Stellosphere?" episode of Miles From Tomorrowland.

Miles from Tomorrowland follows the explorations of Miles and his family - mom and ship captain, Phoebe; mechanical engineer dad, Leo; tech-savvy big sister, Loretta; and best friend pet robo-ostrich, Merc. Together, they explore new galaxies filled with peculiar aliens, space-age vehicles and high-tech gadgets, taking young viewers and their families on a futuristic journey designed to fuel kids' natural interest in space and at the same time reminding them of the importance of what lies close to home – the family bond.

When space thief Gadfly Garnett (voiced by Mark Hamill) sneaks onboard the Stellosphere and blasts away with Miles and Merc still inside, Miles' uncle Joe (voiced by Adrian Grenier), captain of the SpaceGuard, comes to the rescue.

The "Who Stole the Stellosphere?" episode of Miles from Tomorrowland premieres on Friday, February 20, 2015 at 9:00 a.m. ET/PT on Disney Channel.