Dayu is a main antagonist in Power Rangers Samurai and Power Rangers Super Samurai. She was once human and soon-to-be bride of Deker only she sold her soul to Serrator to save her husband, but he doesn't remember anything leaving her heartbroken and sorrow. She is voiced by Kate Elliot.
She's a nighlok with half of her face and wore a japanese outfit.
- Terrence 3: Revival of the Dark Fairy (debut)
- She was one of the two from Power Rangers to be in the Evil Organization.