Demona (), voiced by Marina Sirtis, is a fictional character and one of the primary antagonists of the Disney animated television series Gargoyles. Demona was once Goliath's mate and was part of their 10th century AD castle's Wyvern Clan. She is consumed by a hatred of humanity and has attempted several times to destroy it. Character design In the original pitch for the series, the initial leader of the gargoyle clan was Dakota, but it was later decided she would work best as a villain, and thus her name was changed to Demona. Character biography Demona was a member of the Gargoyle clan at the medieval Scottish Castle Wyvern, Goliath's mate and second-in-command. Like the rest of the clan, Demona originally had no formal name, though Goliath frequently referred to her as his "Angel of the Night". The two mated and eventually had a daughter, Angela, who would join the Manhattan Clan 1000 years into the future. Resentful of human prejudice toward her clan, Demona conspired with the Captain of the Guard to betray the humans inhabiting Castle Wyvern to the Viking raiders. However, Demona failed to convince Goliath to get the gargoyles away from the castle - her end of the bargain - and the clan was slaughtered during daylight. When Goliath returned with Hudson, he was devastated to see the murder of his clan, which he believed included his mate. Demona abandoned the castle with the intent of coming back once he had calmed down, returning only to find the six survivors, including Goliath, under the Magus' stone sleep curse. This broke her heart, beginning the downward spiral in Demona's life of loneliness and pain. Alone for several years, Demona had an encounter with a child named Gillecomgain (based loosely on Gille Coemgáin of Moray), scarring his face when he catches her stealing food. Gillecomgain becomes the original Hunter, the progenitor of a millennial-long line of mercenary and assassin descendants seeking revenge against her. She is later joined by surviving Gargoyles from other clans in 997. During the year, she encounters a time lost Brooklyn, who convinces her and the clan to help Kenneth III fight against Constantine. Though she agrees, she plans to retrieve the Grimorum Arcanorum after it is taken by Constantine's sorcerer Brother Valmont. After Kenneth's side has won the battle, the freed Phoenix (the former prisoner of the Phoenix Gate) is about to take