Slender, slightly less tall than Lestat, his maker, black of hair, gaunt and white of skin, with amazingly long and delicate fingers, and feet that don't make a sound. Louis, whose green eyes are soulful, the very mirror of patient misery, soft-voiced, very human, weak, having lived only two hundred years, unable to read minds or levitate, or to spellbind others except inadvertently, which can be hilarious, an immortal with whom mortals fall in love. Louis, an indescriminate killer.

Louis was made in 1791 when he was 25, by Lestat. He lived in New Orleans with Lestat for 4 years until Lestat made the child vampire Claudia. They lived together in New Orleans for some 65 years.When Claudia rebelled against Lestat and 'killed' him, they left New Orleans for Europe and stayed there until her death. Louis spent the next hundred years wandering the world with Armand and finally left him after he learned from Lestat that Armand was resposible for Claudia's death. Louis is always described as a great beauty. Lestat also called him Mercifiul Death; he is the most human of vampires, and who, in his early years, didn't kill humans out fo his "respect for life". He has long black hair and green eyes with a slight french accent.