With the Sonic the Hedgehog live-action movie just around the corner, there's never been a better time to look back on all the actors who once brought life to Sega's little blue speed rat. Though improv master Ben Schwartz will play Sonic in the sure-to-be-great film, he's just the latest in a long line of actors—in both America and Japan—who convinced all of us that a hedgehog could speak. On this episode of Retronauts, join Bob Mackey and Henry Gilbert as they trace the surprisingly deep history of Sonic thespians. Plus: Larry King in the role he was born to play!