His full name is Douglas Abbot. He is the manager of the preserve. He has a bloody past and is a ruthless warlord. He hunts down hybrids in large numbers and cooperates with Dr. Singh to try to end the plague. He is the main villain of the entire comic.
Although the Abbot in the comics has a mustache, the Abbot in Netflix has a full beard.
Generally speaking, a big beard works better for an evil villain.