Aku, the shapeshifting Master of Darkness, is the main antagonist and nemesis of Samurai Jack.
Appearances
Samurai Jack
Main cast, played by Greg Baldwin
- Episode 5x01: Episode XCII (Mar 11, 2017)
- Episode 5x02: Episode XCIII (Mar 18, 2017)
- Episode 5x05: Episode XCVI (Apr 15, 2017)
- Episode 5x06: Episode XCVII (Apr 22, 2017)
- Episode 5x07: Episode XCVIII (Apr 29, 2017)
- Episode 5x09: Episode C (May 13, 2017)
- Episode 5x10: Episode CI (May 20, 2017)
Main cast, played by Mako
Guest cast, played by Mako
- Episode 5x10: Episode CI (May 20, 2017)