Merrisod is thought to be at the top of the Romulan Arms Dealing Operation in the Alpha Quadrant - responsible for equipping the Gateway Resistance with supplies and weapons. Very little is known about him as he remains in absolute concealment. All his work is done through his right-hand man associate, Talbot.

In a surprise turn of events, it is revealed that Merrisod is Dom Riser, both names an anagram of each other.