Deker is a mysterious Nighlok swordsman, who doesn't remember his past and is cursed into finding the ideal opponent to duel. He is the teritary antagonist of Power Rangers Samurai and the secondary antagonist of Power Rangers Super Samurai. He appears in the "Fish Out of Water" episode and mentions that Samurai rangers have returned. He also battles Jayden somehow. After confronting Master Xandred, he thinks he was a half human.
Uramasa: A unique designed nodachi-like sword that Deker carries around with him. The sword seems to be powerful since it was able to slice through solid stone with ease.
- His counterpart in the Super Sentai series that Samurai was based on is Juzo Fuwa.
- Rick Medina, who plays Deker's human form, once played Cole Evans, the Wild Force Red Lion Power Ranger.