VIDEO : Mark Hamill and Ron Perlman Cast in 'Transformers' Animated Series

The Transformers are adding some serious star power to their line-up in 2018. Machinima and Hasbro's Transformers: Prime Wars Trilogy is gearing up for its third and final act, and has announced that a couple of iconic voice actors have joined the cast. Mark Hamill (Star Wars, Batman: The Animated Series) and Ron Perlman (Hellboy, Sons of Anarchy) are both set for roles in the upcoming Power of the Primes series. Perlman started as the series villain, while Hamill was introduced in Season 2, which was just released in December.