Thursday Next: Ex-operative from Swindon's literary detective office of SpecOps 27 and currently head of Jurisfiction, the policing agency that operates within fiction to safeguard the stability of the written word.

Friday Next: Thursday's son, aged two.

Granny Next: Resident of Goliath Twilight Homes, Swindon. Aged no and cannot die until she has read the ten most boring classics.

Wednesday Next: Thursday's mother. Resides in Swindon.

Landen Parke-Laine: Husband of Thursday who hasn't existed since he was eradicated in 1947 by the Goliath Corporation, eager to blackmail Miss Next.

Mycroft Next: Inventor uncle of Thursday's and last heard of living in peaceful retirement within the backstory of the Sherlock Holmes series. Designer of Prose Portal and sarcasm early warning device, among many other things. Husband to Polly.

Colonel Next: A time-travelling knight errant, he was eradicated by the ChronoGuard, a sort of temporal policing agency. Despite this, he is still about and meets Thursday from time to time.

Cat, formerly known as Cheshire: The ex-Wonderland Uberlibrarian at the Great Library. And Jurisfiction agent.

Pickwick: A pet dodo of very little brain.

Bowden Cable: Colleague of Thursday's at the Swindon Literary Detectives.

Victor Analogy: Head of Swindon Literary Detectives.

Braxton Hicks: Overall commander of the Swindon Special Operations network.