Mr. Faust blames Julius Kane, his former son-in-law, for Ruby's death. After her death, he and his wife gain custody of Sadie; it is implied that they do not wish for custody of Carter due to his resemblance to Julius and greatly favor Sadie for her resemblance to her mother.
After the explosion at the British Museum, the Fausts and the Kane family are visited by Amos Kane and Mr. Faust reluctantly lets Sadie go with Amos and Carter, as he knows it is Sadie's destiny. They keep a shrine to their deceased daughter, Ruby Kane. Mr. Faust and his wife appear to know of magicians, but do not practice magic themselves.
When Sadie goes to visit them and her friends Liz and Emma in London, she finds that Mr. and Mrs. Faust are unintentionally hosting Babi and Nekhbet, the baboon and vulture gods, who proceed to hunt Sadie and her friends across London until Bes scares them away.
Although Mr. Faust is noted to have a temper, he is also very kind, particularly to Sadie.
Mr. Faust is an ex-rugby player with beefy arms and a belly too big for his shirt; he is described as scary-looking and can usually scare people.His eyes look as if someone has socked them in (Due to the time when Julius Kane punched him in court).
Mr. Faust is descended from King Ramesses II and as such is born from the Blood of the Pharaohs having great potential as a magician. Despite this, he and his wife do not practice and try to ignore that side of their life.
- Julius Kane: Mr. Faust is shown to dislike Julius. He blames him for the death of his daughter, Ruby.
- Carter Kane: It is hinted, though not explicitly stated, that Mr. Faust dislikes Carter because he reminds him of Julius, Carter's father and Ruby's husband.
- He enjoys rugby.