Vehicle Mode: Wasp-like helicopter Gender: Female Personality: Calm and occasionally energetic, but prone to laziness. Traits: Moves without a sound or trace; approaches silently despite lacking a stealth function. Nicknamed Ninja or Assassin. Weapon: Gauntlets resembling wasp stingers.

Vehicle Mode: Futuristic VTOL drone helicopter Gender: Male Personality: Mischievous and shows a childish side. He is actually younger than Phantom Hornet and Flash Vector. Traits: Moves without a sound or trace and possesses a stealth function that allows him to blend into the background—essentially invisibility. Only Phantom Hornet lacks this ability. Nicknamed the Invisible Challenger or Assassin, and sometimes jokingly called Baby. He absolutely hates the nickname Baby. Weapon: Purple shurikens.

Vehicle Mode: Formula car Gender: Male Personality: Appears blunt and calm on the outside, but is very emotional on the inside. Traits: Moves without a sound or trace. He used the stealth function before Shadow X did, so Shadow X sometimes calls him Senior. Nicknamed Assassin, Senior (by Shadow X only), or Tsundere. Weapon: Inline skates worn on both feet and a dagger with paralyzing poison needles.