In The Crystal Prison, she is forced by the Starwife, ruler of the squirrels in Greenwich Park, to accompany the rat Madame Akkikuyu to Fennywolde, a cornfield inhabited by Twit and many other fieldmice.
Then, after digging through the cellar, she finds the silver acorn and takes it up to the observatory hill to become the new Starwife and reigns for ten years.
However, when black squirrels arrive in Greenwich in The Deptford Mice Almanack, she is ousted from office by the mysterious squirrelmaid Morella.
Aubrey is overwhelmed with grief at his death, but was able to find acceptance when she was able to share a kiss with his ghost before parting ways for good.
Piccadilly's parents were killed by an Underground train when he was young and this tragedy caused him to deny the existence of the Green Mouse, preferring instead to depend upon his own sharp wits.
At the conclusion of The Final Reckoning, a ghostly Piccadilly is able to share a kiss with Audrey moving on, admitting that he has always loved her.
In the beginning of The Dark Portal, Albert succumbs to the magical powers of the Grille in the basement of the empty house in Deptford and wanders into the sewers.
Frightened and alone, he remembers that the Great Spring Festival is approaching; this year his son and daughter will receive their mousebrasses, and he will probably miss it.
Trying to find his way out of the sewers, Albert stumbles across Piccadilly, a young grey mouse from the city, and the two quickly become friends.
In the end of The Final Reckoning, Albert's ghost appears once more to Audrey, telling her that he loves her, her brother and her mother, and that he understands the affection that is growing between Gwen and Thomas Triton and wishes them joy.
The Starwife is the ancient leader of the squirrels in Greenwich Park, who lives in a chamber underneath an oak tree.
She wears a silver acorn pendant and possesses a shiny black disc known as the Starglass, with which she can see into the future.
As she is aging fast and unable to find a black squirrel successor, she tricks Aubrey into taking her place as the next Starwife, who eventually accepts the position after the fall of Jupiter.
After this, in The Crystal Prison, Jupiter's ghost speaks through a tattoo on the fortune-teller Madame Akkikuyu's ear, claiming that he was Nicodemus, a spirit trapped in limbo.
When she received her Sign of Grace and Beauty mousebrass in the summer before the events of the novel, she began teasing boys and took great care of her appearance.
When the strange black squirrel Morella arrives in Greenwich in The Deptford Mice Almanack, it is noted that she looks very much like the young Alison.
Jenkin's father acts very cruel to him, giving the young mouse beatings if he does something Isaac finds unacceptable.
Deep down, Isaac does love his son, but always blames him for the death of his wife Meg who died giving birth to Jenkin.
Once, Jenkin had been in love with Alison Sedge, but after she received her Sign of Grace and Beauty their relationship ended because she had become vain.
Sadly, Jenkin is killed and eaten by Mahooot, and Isaac discovers the owl pellet containing his son's mousebrass soon after.
It's revealed that his craziness is just a front, and that he has an unknown past with the Starwife, which was briefly touched upon in the Final Reckoning.
William Godwin, or Will, is a young boy who is one of the main characters in The Alchymist's Cat, the first book in The Deptford Histories, set in London in the 1660s.
Eventually he discovers the truth as to why he was kidnapped by Spittle and escapes him leaving the burning capital behind carrying the last kitten that survived.
Dahrem Ruhar is an evil adept of the serpent god Sarpedon, who gains the trust of Thomas, Woodget and Mulligan disguised as a mouse named Dimmy.
Virianna is the mother of Willibald, Woppenfrake and Firgild and the priestess of the Green who lived during the time of Fenlyn Purfote.
Gervase Brightkin is a red squirrel who travels to Greenwich Park ten years after the events of The Final Reckoning.
Morella is a mysterious black squirrel maiden who comes to Greenwich with her father Modequai ten years after the events of The Final Reckoning.
It is rumoured that she and her father are the last surviving members of the Hawthorn Realm, one of the five royal houses of black squirrels.
Soon after her arrival, Morella's father barges into Audrey Scuttle's chamber and takes the silver acorn from her neck.
Strangely, Morella greatly resembles the field mouse Alison Sedge, though the significance of this has never fully been revealed.