Hyrnek, Jakob — A childhood friend of Kitty Jones, who was wounded by the Black Tumbler.
Hyrnek, Karel — Jakob Hyrnek's father; a commoner and highly skilled book binder noted for printing magnificent spell books.
Jenkins, Clive — A minor, first-level magician and secretary in the Office of Internal Affairs who is engaged in a conspiracy against the government.
Jones, Kathleen (aka Kitty; aka Lizzie Temple; aka Clara Bell) — A young girl and leading member of the Resistance; a commoner who possesses a special ability to resist demon attacks. She assisted Nathaniel in exposing the Golem Affair and helped destroy the Demon Revolt.
Julia — In Ancient Rome, a Vestal Virgin consecrated to Vesta and to the tending of the Vesta's Sacred Flame; according to Bartimaeus, she would sneak away from the Flame at night to bet on the chariots at the Circus Maximus.
Kavka, Mr. — The magician who is blackmailed into creating the manuscript used to animate the golem.
Kavka, Karl and Mia — The captured children of Mr. Kavka; used to blackmail Mr. Kavka into writing the golem manuscripts.
Lime, Rufus — A fish-faced man; one of Simon Lovelace's confederates in the Lovelace Conspiracy and other devious plots against the government.
Loew — A great magician who created the first golem 400 years ago as a means of protecting the Jews against attacks by human and djinni alike.
Lovelace, Simon — The Deputy Minister for Trade; an ambitious, ruthless magician obsessed with gaining power over his rivals. Leader of a conspiracy to overthrow the government.
Lutyens, Rosanna — Nathaniel's former sweet-tempered art teacher, specializing in the instruction of technical drafting; also a commoner.
