This is a list of characters in the original sequel Oz books by L. Frank Baum's successors. The series was continued by Ruth Plumly Thompson, John R. Neill, Jack Snow, Rachel Cosgrove Payes, Eloise Jarvis McGraw and Lauren McGraw, Dick Martin, Eric Shanower, his grandson Roger S. Baum and Sherwood Smith.
Humans from the "real world"
Jam
Jonathan Andrew Manley, nicknamed "Jam", is a boy from Ohio who is the son of a biologist and first appears in Rachel Cosgrove Payes' The Hidden Valley of Oz. He alongside two guinea pigs and a laboratory rat (Percy) arrived in Gillikin Country on a large collapsible kite. After escaping from Terp the Terrible, Jam befriended Dorothy, Scarecrow, Tin Man, Cowardly Lion, and Hungry Tiger who agreed to help him against Terp the Terrible. They even get a new party member in the form of the Leopard with the Changeable Spots. After Terp the Terrible is defeated, Jam attends a celebratory banquet before he is returned to Ohio by Princess Ozma and the Wizard of Oz.
In the rejected first draft of chapter 1 of Hidden Valley, Jam arrives in Oz by a rocket ship rather than a kite. Reilly & Lee's editors rewrote this, possibly due to its similarity to Ruth Plumly Thompson's The Yellow Knight of Oz (1930), or to another author's rejected Oz book submission, in order to avoid allegations of plagiarism.
While Payes brought Percy the rat back for further appearances, Jam never appeared again in her work. As Hidden Valley remains under copyright until 2047, new stories featuring the character are unlikely. However, in 1966, Henry S. Blossom featured Jam in The Blue Emperor of Oz, a work which was not circulated widely enough to attract accusation of copyright infringement.
Jenny Jump
Jenny Jump is an important character in the four Oz books of John R. Neill. Living in New Jersey at the time, Neill named her after Jenny Jump Mountain.
Jenny begins as a fifteen-year-old in New Jersey, who one day finds a leprechaun stealing her cheese. She is clever enough to capture him with her stare, so that the leprechaun, called Siko Pompus must grant her a wish. She wishes to become a fairy, and the leprechaun transforms her. In the midst of this psychedelia, however, Jenny's gaze falters, and the leprechaun eludes her control, leaving her part-fairy and part-human. Still, Jenny has remarkable new abilities. With her fairy foot, she leaps all the way to the Land of Oz, to begin her adventures.
Jenny is not a fan of the traditional, single-color fashions favored by the Ozites, and she sets up a shop with a magic turnstile that dresses people according to their personalities.
Neill's text of The Wonder City of Oz was heavily rewritten by an anonymous editor at Reilly & Lee, and that editor added some controversial changes to the story, in particular, involving Jenny Jump. These additions include creatures who live in the Deadly Desert called Heelers, who live on shoes. Jenny is goaded into running against Princess Ozma as ruler of Oz. It is not taken very seriously by the Ozites, and it is decided that shoes will be used for votes in an Ozelection. The Ozelection and all that leads up to it is not in the manuscript. Furthermore, near the end of the novel, the Wizard casts a spell to make her younger and more obedient while removing the three creatures behind her flaws that become visible to everyone present: bad temper is a black wasp, envy is a green snake, and ambition is a fat red toad. Neill was not enamored of these changes and did not illustrate them (except for one image of the de-aged Jenny at the very end), and Jenny seems to have gone back to her old self in the two sequels (although she is more compassionate to her underlings).
Jenny is regularly accompanied by a Munchkin boy called Number Nine, who loves her even though she treats him like a slave during the first book. She has him wear whistling breeches that alert her to his presence.
In The Scalawagons of Oz, Jenny is again a main character, when she joins the trans-Oz search for the stolen magical cars. In Lucky Bucky in Oz, she is one of the planners of the grand Emerald City gala, but is only a background character, while Number Nine is a more prominent actor in the plot.
In The Runaway in Oz, whose publication was delayed over a half-century after the author's death, Jenny helps get the story started by quarreling with Scraps the Patchwork Girl; but once Scraps runs away, Jenny spends the rest of the book helping to look for her.
As Jenny is a copyrighted character, she is not found in modern Oz expanded universe stories, save Oziana magazine.
Notta Bit More
Notta Bit More is a circus clown from North America.