Michael Green Creator, Executive Producer, Writer, Director Amber Noizumi Creator, Executive Producer, Writer Maya Erskine Mizu Voice George Takei Seki Voice Masi Oka Ringo Voice Randall Park Heiji Shindo Voice Cary-Hiroyuki Tagawa The Swordmaker Voice Brenda Song Akemi Voice Darren Barnet Taigen Voice Kenneth Branagh Abijah Fowler Voice Erwin Stoff Executive Producer Ryan O'Loughlin Director Jane Wu Director Yana Bille Writer Alan Wan Director Earl A. Hibbert Director Sunny Sun Director Alan Taylor Director