"He's gone—dead at the hands of an overenthusiastic agent. That's why Minder Four is no longer with us."
―Watcher Two[src]

Minder Four was a Minder in Imperial Intelligence during the Cold War. Minder Four was overenthusiastic in the interrogation of the former master of a rebel slave named Jurithus, and Minder Four's job was terminated when the subject died in the interrogation.