- "Merrick, a Guardsman's life is to die. My job has always been to send them where they can die. I'm not afraid to spend men, but I never waste them!"
- — Lord General Castor to Sergeant Major Merrick after the destruction of Typhon Primaris
Lord General Castor is a character featured in the PC Game Dawn of War II - Retribution, the second expansions pack to the real-time strategy computer game Dawn of War II. He hails from the Fortress World of Cadia and leads several Cadian Regiments, including the famous "Castellan's Own" - the Cadian 8th Regiment - to restore order in Sub-sector Aurelia.
After Ulkair and the Black Legion were defeated by the Blood Ravens on the Chaos inhabited planet that was once the Planetary Capital Aurelia. The Black Legion did not retreat after their defeat but instead rallied to either Azariah Kyras or Chaos Lord Eliphas to bring destruction to several planets in Sub-sector Aurelia. Due to Chaos incursion, Blood Ravens Civil War between Blood Ravens still loyal to the Imperium and the Emperor and those who fell to Chaos influence of Azariah Kyras and his Honor Guard excluding Diomedes, Eldar raids and remnants of the Tyranids ravaging Typhon Primaris left the sub sector in ruin, disorder and turmoil. The Imperium then send The Lord General and several Cadian Regiments to restore order in the Sub Sector. Even with Cadian Regiments, local Imperial Guard Garrison Regiments and Loyalist Blood Raven Space Marines conflict within the sector rage on. To make matters worse for the Loyalist, several regiments betrayed them and swelling the ranks of Chaos due to its influence or possession. After 10 years of constant conflict, the sector was then placed with a decree of Exterminatus after many arguments that the sector is lost. Before the Exterminatus fleet arrived into the sector, an Inquisitor by the name Adrastia was requested by Gabriel Angelos of the Blood Ravens Chapter to investigate their Chapter Master of heresy and if possible, with the execution of said Chapter Master, the sector would be spared. During Adrastia's investigation, she requested help from Lord General Castor. The Lord General agreed, with Sergeant Major Merrick, Commissar Lord Bern, Guardsmen, and Storm Troopers accompanying him in aiding her investigation and saving the sector from destruction.
- Dawn of War II - Retribution (PC Game)