For this prequel, the voice cast is entirely different from the live-action films and boasts some pretty big A-listers. Here’s our complete “Transformers One” cast and character guide.

The star-studded voice cast of the Josh Cooley-directed film includes Chris Hemsworth, Brian Tyree Henry, Scarlett Johansson, Keegan-Michael Key, Steve Buscemi, Laurence Fishburne and Jon Hamm.

In the first-ever fully CG-animated Transformers movie, Transformers One features a star-studded voice cast, including Chris Hemsworth, Brian Tyree Henry, Scarlett Johansson, Keegan-Michael Key ...