Otawa Genzo - the second Oboro. He uses illusions to capture enemies. He has red hair a gold half mask. Sakon kills him with Ryoan's help.
Kiro Masago - the third Oboro. He has blue hair and ash-gray skin. He possessed Kayo and forced her to betray Iga. Ryoma kills Kayo in killing him.
Kiheiji - the fourth Oboro. He has blonde hair and blue triangular marks under his eyes. He fights Ayame and then Sakon, nearly killing him. He can use a web to trap his enemies and is very effective with his spear/scythe weapon. Sakon kills him once he learns to call on the magic of his sword.
Kagami - the fifth and last of the obvious Oboro. She appears to be a little girl in a kimono with big red eyes and black hair, but can animate corpses with her crying. She also carries a little ball which explodes. Ryoma is nearly killed by her because she appeared to be a harmless child (probably part of her power) but kills her instead.
Oda Nobunaga - the warlord trying to take over the world. He has burned and destroyed temples and all the ninja clans who have fought him. He is very paranoid that someone will kill him. He distrusts everyone so much that he has his own guards killed. He only trusts Oboro and Ranmaru. At the end he is revealed as the most powerful of the Oboro, the Black Demon, but is unaware of it.
Ryoan - the priest who guides Ayame, Sakon and Ryoma, also saving their lives several times with chanting. At the end, Ranmaru reveals that Ryoan is the last of the Oboro, programmed to bring the three shinobi to fight Nobunaga. He's a little bald guy with the typical kami and staff, and a habit of disappearing.
Genyusai - Ryoma's father and lord of Hagakure. He is killed in Jinnai's attack on Hagakure.
Wadato Kayo - representative of the Koga ninja clan, she is Momochi's younger sister, sent away to Koga when she was young. She turns out to be the traitor the Iga are looking for, but actually possessed by Masago (Oboro). She bears a resemblance to Kikyo, the assumed reason Ryoma falls in love with her.
Momochi - leader of the Iga clan. He trusts the Koga, but turns out to be his undoing. He dies trying to kill Kayo and Masago, killing himself to try and make up for his error.
Jimbei - a young shinobi who looks up to Sakon, supporting him in his claims that Koga betrayed Iga, but still he refuses to leave his people and go with Sakon. He is blinded and killed during the attack on Iga.
