Like all other Monroe family members, Dominic wears a black formal suit. Dominic wears his hair a messy style. His facial features are freckles and a single piercing on his right ear.
Not much was revealed about Dominic's personality, however he is seen to have a placid character.
Dominic, his partner Fiona and other Monroe Family members are caught up in a battle against Spas. When all other members except Dominic and Fiona are defeated, he lunges at Spas with his kukri, only to be sliced into half with Fiona as she tries to block Spas' wire attack at Dominic. The two are forced against the wall, Dominic dies with Fiona clutched in his arms.
He has been shown to be able to use a Kukri.
(To Fiona) "Can you move, Fiona? Run away, even if it's just you..!"