Crystal Dispenser

Crystal Dispensers, also referred to as Brothers, are male programed robotic dispensers which only dispense crystals. They appear in different colours which include green, red, yellow, blue, orange and purple. They can project holograms which show which colour crystal is need to fire at. They are found aboard the SS Lucy Gray though anyone who isn't an engineer aboard the ship they will lower into the floor and hide. (VG: Doctor Who: Return to Earth)

The dispensers also have a female counterpart which are the Object Dispensers also referred to as Sisters.