Tom Cox

Tom Cox is a renegade who later worked for the Styx in the Tunnels series. He is a former Colonist who was banished to the Deeps of the Earth for the rest of his life. He became hideous inside and out, due to the hard life of surviving in that harsh land.

Cox later found work for the Styx, and he was given the job of trying to track down Drake and Will Burrows. He actually did come very close to killing Will.