The soldiers and overseers of the Emerald Chain in the thirty-second century, who guarded its labour camps and salvage yards and boarded Discovery when Osyraa seized the ship.
Regulators are the enforcers of the Emerald Chain, the Orion and Andorian mercantile syndicate that dominates much of the galaxy after the Burn. They wear armour and helmets and keep order among the indentured workers the Chain depends on.
They feature in Scavengers, where they run the salvage yard on Hunhau and control the workers with implants that kill anyone crossing the perimeter. Michael Burnham and Philippa Georgiou fight their way past them to free Cleveland Booker and the other labourers.
Regulators return in There Is a Tide and That Hope Is You, Part 2, when a detachment under Zareh occupies Discovery at Federation Headquarters and is picked off deck by deck by Burnham and the bridge crew.