Supervisor Brown is a modified Mister Handy model robot with a male voice. Designed and built by Dr. Edward Gray as part of a self sufficient robotic garden, he is based on the (rather eccentric) Doctor's favorite TV shows. He is one of the 3 supervisor robots of Graygarden.
Unlike the other Mister Handy robots at Graygarden, he, along with the two other supervisors White and Greene, have much more advanced "cognitive processors" and have personalities based on their creator's favorite television show's characters. Because of this, each of the supervisors have very distinct personalities and voices.