Bellatrix Lestrange

A tall, heavy-lidded woman with a crown of glossy black hair, her face was withered and skull-like after her long imprisonment in Azkaban, and her hair was long and unkempt. Bellatrix was a frightening figure, being a complete psychopath, obsessive and shameless. She was an incredibly sadistic witch, and often displayed mental instability and paranoia: she killed a fox because she mistook it for an animagus. Bellatrix is intelligent, but her intellect is severely limited by her madness and short temper. A pure-blood witch, a Death Eater, and Voldemort's most ardent henchman. A professional in combat magic, comparable to the Dark Lord himself, Antonin Dolohov, and Severus Snape. Prone to madness, very cruel and cunning, a brilliant tactician and strategist. But despite all these qualities, she can be much softer when it comes to her family.

Narcissa has quite an attractive appearance: she is a slender blonde with blue eyes, graceful and aristocratic.

“His mother was also a blonde – tall and slender, she would have been quite nice if she had not always had this expression on her face as if some foul smell was constantly getting into her nose” (GP and KO)

"She was so pale that her face seemed to glow in the darkness. The long white hair flowing down her back made her look like a drowned woman" (GP and PP)

Character
Narcissa is arrogant, shares her husband's views on impure-blooded wizards. She is sarcastic and knows how to tease. She is selfish, in any case she puts the interests of herself and her loved ones (husband and son) first. She is not burdened with excessive moral principles.
Although she was never officially a Death Eater, Narcissa believed in the elitism of pureblood wizards and supported her husband during the First and Second Wizarding Wars. However, her admiration for Voldemort first cracked and eventually gave way to fear and disillusionment.
Narcissa has a rather emotional character, she is capable of losing control of herself, and is a little hysterical.

Rodolphus was a tall, stocky man with very dark hair. However, after Azkaban, he looked thin and his appearance may have deteriorated.

Appearance Tall and slender, long platinum hair flowing over his shoulders, clean-shaven face, pale skin, cold grey steel eyes. The piercing gaze and impenetrable features frighten many.
Artistic, resourceful, cautious. Cold, contemptuous of all those whom he considers to be below him in social status. Distinguished by the flexibility of mind and behavior, easily maneuvers in any circumstances ("Lucius, my slippery friend..."). Externally accepting any image convenient for himself, internally always preserves his Self.

He is arrogant, ambitious, a tough guy, and not yet mentally developed. Life gradually teaches Draco lesson after lesson, which he does not learn at first.
Draco has light, almost colorless hair, pale, thin skin, cold gray eyes, a sharp chin. Aristocratic and important, as he considers himself superior to others due to his blood status.