Stolas is a Goetic Prince of Hell and a major supporting character in Helluva Boss. He is the father of Octavia and the ex-husband of Stella. Stolas is an anthropomorphic owl demon. He is tall and slender, with a white, heart-shaped facial disk and small black beak, resembling that of an owl. He has two pairs of almond-shaped red eyes, one set atop the other. Stolas gives the immediate impression of someone regal and ostentatious, as would be expected for a royal of his station.