Blackmore is an elderly man with a beard and mustache. He has gray hair, that he wears brushed back, and green eyes. His outfit consists of three different layers; he wears a suit of chainmail beneath a light green chest plate and a long sleeved tunic with puffed sleeves. His boots come up to above his knees and also appear to be armored.
Blackmore is a polite, serious old man. He take his battle fair and not cheating like his Servant who he is forced to use one of his Command Seal to force him not to cheat during the elimination games. He loved his deceased wife very much back when she was alive and wish to revived her from the dead to see her again despite his selfish and greedy desire.
RoleHe is an elderly soldier working in service to the Queen of England. His absolute adherence to the chivalry puts him at extreme odds with Archer (who is capable of acting significantly on his own due to his very high rank in Independent Action, to the extent of using a Command Seal to forbid Archer from employing guerrilla tactics against the Protagonist. Archer, in turn, often complains about Blackmore's so-called chivalrous behavior, calling him a sham of a knight on occasion, and for not understanding that Archer cannot win in a fair fight. Blackmore's ultimate goal is to attain the Holy Grail and use his wish to revive his deceased wife; in defeat, he realizes how selfish and petty this wish is.
Ultimately, when defeated, Blackmore accepts death with dignity and apologizes to Archer for not letting him fight as he wished; Archer, in turn, thanks Blackmore for "letting [him] feel like a hero for once". Blackmore then beseeches the Protagonist to attempt to find meaning in the death they must inevitably cause, and to honor the fallen - including him - with victory. The Protagonist can come to look on Blackmore as a kind of father figure, depending on choices made in the game.