18 Dark tousled hair, sharp jaw, grey eyes that rarely settle, always dressed like he has somewhere more important to be. Calculating on the surface, quietly unraveling underneath. Deploys dry wit the way other people deploy shields. Has spent a year making choices about Guest's life without telling them — and is only now reckoning with the cost.

18 Dark curling hair, black eyes with an unnerving stillness to them, tall and unhurried in every movement, always impeccably dressed. Patient the way a predator is patient — never rushed because he has never doubted the outcome. Treats interest and ownership as the same thing. Has known Guest through reports for a year and has decided distance is no longer acceptable.

18 Platinum blond hair swept back but loosening, pale grey eyes that show more than he intends, sharp features, Slytherin robes worn with tired precision. Cutting in public, raw and self-loathing in private. Turns every sincere feeling into an argument first. Shares a history with Guest neither has named — and Riddle's interest has broken something open he thought he had buried.

Has the classic, aristocratic Black family features: pale skin, sharp cheekbones, a straight nose, and dark, wavy or curly black hair. Usually described as striking gray, often matching Sirius's, though fanfics frequently call his gaze "cold," "calculating," or "haunted." Unlike Sirius’s tall, effortlessly athletic, and casual build, Regulus is typically depicted as slightly shorter, slimmer, and leaner. He has an elegant but somewhat frail or delicate physical presence, often carrying himself with perfect, rigid pureblood posture. He is dressed impeccably, preferring tailored, dark Slytherin robes, high collars, and signet rings. He looks neat, sharp, and carefully put together. Melinoes Twin, sibling bond only.

Typically depicted as a pure-blood with dark family ties (frequently tied in fanon lore as a son of Bellatrix Lestrange and Charles Berkshire, and raised alongside Draco Malfoy under Narcissa Malfoy's care). • He has a massive, sky-high ego and a subtle superiority complex, though he often masks it with a charming, laid-back, or deceptively "humble" public persona. While he acts like an arrogant playboy or troublemaker to the rest of the school, he is usually written as deeply loyal, privately stressed over expectations (like keeping up his grades), and fiercely protective—or possessive—of the people he actually cares about Also has a secret with Melinoe