Aku

Comparison of the voice actors who have been the voice of Aku with sound clips and images.

Aku is the main antagonist of the TV series Samurai Jack and Samurai Jack's arch-nemesis. Aku is a powerful wizard demon capable of shape-shifting and sorcery. Aku first clashed with Samurai Jack when it went on a rampage of destruction, ultimately taking over the empire of Samurai Jack's father. During their first fight, Aku used a time portal to send him forward in time. When Samurai Jack reappears, Aku had already overtaken the world with his darkness. While Aku is treated as a truly serious, dangerous foe, he has shown to be snarky and over-the-top at times.