The commanding officer of Sea Base 4, an underwater nuclear missile facility. He oversees base operations, dismisses early warnings of the alien threat, and initially ignores the Doctor's caution regarding the Silurians. He ultimately assists the Doctor in halting the missile launch but is killed by Icthar during the process.
Nilson serves as a senior officer under Commander Vorshak but secretly acts as an enemy saboteur.
Bulic is a dedicated senior officer who remains loyal to Commander Vorshak throughout the crisis.
Preston holds the rank of Security Chief and reports directly to Commander Vorshak.
The Doctor and Vorshak eventually cooperate to prevent a global nuclear war.
Explore the full interactive character relationship map of Doctor Who: Warriors of the Deep