SignalMan (シグナルマン, Shigunaruman): An intergalactic robotic police officer assigned to Earth, and something of a Sixth Ranger figure. He is from the Police Planet, where he left behind his wife Sigue, and son Sigtarou. He can sometimes be more of a hindrance than a help to the Carrangers, because of his intense training in the rules of traffic. He briefly left Earth and returned to his homeworld to spend time with his family only to find that it was polluted by five-colored exhaust created by Exhaus to warp SignalMan's mind. Deceived that the Carrangers were behind it, he went back to Earth to perform police brutality on them, and sort of became the new leader of the Bowzock. Fortunately, the Carrangers managed to restore their friend to normal by tricking him into drinking natural mineral water. SignalMan can usually be seen operating from the Kobaan Base (コバーンベース, Kōban Bēsu), a small Police booth, which can be nearly everywhere in Japan (except places where people might actually pass it...)
* Signal Weapon: Signizer (シグナイザー, Shigunaizā), SignalMan's badge, has three modes, a recording device, Police Baton Mode (ポリスバトンモード, Porisu Baton Mōdo), and Gun Mode (ガンモード, Gan Mōdo), in which form he usually shoots enemies in the knees to incapacitate them without using lethal force. It can also call the PoliSpeeder.