Lukas Karuzos

Lukas Karuzos was the author of A New Theory of Numerology, and thus presumably an accomplished numerologist, as Arithmancy student Hermione Granger anticipated receiving a copy of his book.

Etymology
Lukas Karuzos is presumably named after Luca Caruso, the son of Miraphora Mina, a graphic designer for the Harry Potter films.

Appearances

 * Harry Potter and the Half-Blood Prince (film)