Psyche Dalek Three was one of the special Psyche Daleks.
Psyche Dalek Three accompanied the Black Dalek sent to apprehend Davros on the planet Spiridon. He was tasked to control the Robomen, who had formerly been the Seventh Doctor's friends. Using a small control held in his claw and wired into his arm, he could detect mental activity and direct their actions. When he attempted to direct the robotised Abslom Daak to attack the renegade forces of the Ven-Katri Davrett, the Doctor blocked the signal by surrounding the control with the microthin metal of his map. The invisible Spiridons lifted him and smashed the casing for his brain against another Dalek. (COMIC: Emperor of the Daleks!)