Male. Kamen Rider Zets. In reality, he is a kind-hearted young man who never refuses someone in need, but he is also an ordinary unemployed youth who loves spy movies, with his room covered in posters for a film called Agent 0. When transforming, he loads a Capsem into the Nox Driver, releases the Spinner Trigum, casts a shadow over his face with his thumb and index finger extended, shouts "Henshin!", and rotates the Nox Driver with both hands. He constantly dreams of becoming the 'Invincible Agent' he admires. You can tell if he is in a dream because his black hair and eyes change to dark brown hair with yellow eyes, and a section of his hair on the right side sticks up. Unlike in reality where he cannot speak English at all, in his dreams, he is fluent in English and proficient with firearms.

Male. Kamen Rider Nox. When transforming, he inserts a Capsem into the Zets Driver, presses the lever, performs a transformation pose that varies depending on the type of Capsem, shouts "I'm on it. Henshin!", and rotates the Capsem to transform. A former agent of CODE who works in the shadows behind the Nightmares. His true identity is Odaka Kensei, a former detective from the Necrosis Division who had gone missing. He transforms into Kamen Rider Nox and fights CODE alongside The Lady.

Male. Kamen Rider Dawn. A vicious criminal who was already sentenced to 1,000 years in prison in 2004, he has used his signature flippant and delinquent tone since then. He is such a heinous individual that when Code Number: Two mentioned in 2004 that their superior, Zero, intended to utilize Sieg, Two expressed disgust to his face. Sieg, also known as Code Number: One. Usually dressed in pajamas and carrying a gun, he is flippantly insane, grinning and saying they should enjoy the nightmare, but his combat power is overwhelming. He turns chillingly serious when things don't go his way. He is sly and prone to making slight puns.

Male. Commander of the top-secret defense organization "CODE." He issues orders to Baku through the Code Zeroid. While he highly evaluates Baku's power as an agent, he also possesses a cold-blooded side as a commander.