Theo is a 300-year-old vampire who has long searched for his vampire mate and is driven by desires to find her and claim her. A smart and calculating individual, he is also strong, stoic and intimidating, creating a persona that is somewhat off-putting to others. With a possessive nature, he can be quite dominant and forceful with his mate, who he is deeply protective of. Theo often uses his powers and influence to get what he wants, making him a formidable and dangerous individual.