
James Robert Anthony Adams is the main character in the first series of the acclaimed book series CHERUB by British author Robert Muchamore. Upon joining CHERUB he changed his surname to Adams, which is derived from ex-Arsenal FC defender Tony Adams. He ended his CHERUB career wearing a black T-shirt, which is the most elite colour granted. At the end of his CHERUB life, he returns to his "Choke" surname and switches his two forenames around, to become Robert James Choke. However, he is still referred to as James in later books. He made an appearance in the third book of the second CHERUB series, Black Friday and is a mission controller in the fourth book of the second CHERUB series, Lone Wolf. He also made an appearance in the last book, New Guard.

Trueman Bradley is a fictional character in a series of detective novels written by Alexei Maxim Russell. Bradley is characterized as a genius detective with Asperger syndrome.

A dæmon is a type of fictional being in the Philip Pullman fantasy trilogy His Dark Materials. Dæmons are the external physical manifestation of a person's "inner-self" that takes the form of an animal. Dæmons have human intelligence, are capable of human speech - regardless of the form they take - and usually behave as though they are independent of their humans. Pre-pubescent children's dæmons can change form voluntarily, almost instantaneously, to become any creature, real or imaginary. During their adolescence a person's dæmon undergoes "settling", an event in which that person's dæmon permanently and involuntarily assumes the form of the animal which the person most resembles in character. Dæmons are usually of the opposite sex to their human, though same-sex dæmons do exist.
Jenna Heap is a leading character in the Septimus Heap book series by Angie Sage. She is the adoptive sister of Septimus and the adoptive daughter of Silas and Sarah Heap. Jenna has many friends in the book, yet also a lot of enemies. Although she acknowledges they are not her birth family Jenna loves her adoptive family very much - this includes her seven brothers, her Grandpa Benji, her Mum and Dad, and her Aunt Zelda.

Septimus Heap is the protagonist in the bestselling book series Septimus Heap, by Angie Sage. He is the Apprentice to the ExtraOrdinary Wizard, Marcia Overstrand. He was once a member of the Young Army, known as Boy 412.

Dr. Fu Manchu is a fictional villain who was introduced in a series of novels by the English author Sax Rohmer during the first half of the 20th century. The character was also extensively featured in cinema, television, radio, comic strips and comic books for over 90 years and he has also become an archetype of the evil criminal genius and mad scientist, while lending the name to the Fu Manchu mustache.
Marcia Overstrand is a fictional character in the Septimus Heap series by Angie Sage. She is a powerful ExtraOrdinary Wizard. Septimus is her apprentice.