Lucifer

Gender: Male
Race: Demon (Former Angel)
Birthday: June 6th
Zodiac: Gemini
Likes: Tea with Diavolo
Dislikes: Enemies of Diavolo

Lucifer is the Avatar of Pride and is the oldest among the seven demon brothers.

Lucifer is the second tallest of the seven brothers, almost reaching Beelzebub's height. He has black hair with white tinted tips that's parted on the right side of his face, and black eyes with an outwards red gradient. Like all of the demon brothers, Lucifer paints his nails and specifically wears red nail polish.

(Source: Obey Me! Wiki)