Hare acts as personal servant and henchman to the warlock Lord Cob within Cob's castle. As chief slaver, he commands a squadron of men responsible for kidnapping individuals, including children, to supply slave traders. He preys on vulnerable targets like those traveling alone and thoroughly enjoys this role.

He leads a small group of guards and subordinates in organizing abductions. Crafty yet unintelligent, Hare displays cowardice when faced with superior force. His loyalty to Cob involves subservience, yet he remains subject to Cob's extreme punishments despite his position.

A notable incident involves his attempt to kidnap the young girl Therru; during this, he attempts to assault her before delivering her to slave traders or Cob. Later, he interrogates women associated with the witch Tenar, promising gold for information but withholding payment. He subsequently captures Tenar after trampling her crops and restraining Therru to a fence post, using Tenar as bait to lure the archmage Sparrowhawk into Cob's stronghold.

Hare was formerly a wizard in the region of Wathort before aligning with Cob. His motivations are driven by opportunism rather than genuine loyalty; he adheres to subservience to authority while brutalizing those he perceives as weaker, awaiting chances to exploit conflicts for personal gain. Following his failure to prevent Arren's intervention during the execution attempt of Sparrowhawk and Tenar at the Tallest Tower, he is driven off and not seen again.