Baloo (voiced by Pamela Adlon): A friendly and laid-back sloth bear. He likes to play with his friends and sometimes plays tricks on Bagheera in order to snap the latter out of his conservative attitude.
Bagheera (voiced by Elizabeth Daily in Season 1, Dee Bradley Baker in Season 2): He is an intelligent and mature panther who rarely gets into trouble. He has a preoccupation with being clean. Bagheera is affectionately known as "Baggy" or "Bags" and is the youngest in the group. Despite having a Trans-Atlantic accent in the original film, Bagheera speaks with an American accent in the series.
Louie (voiced by Jason Marsden in Season 1, Cree Summer in Season 2): Baloo's best friend, an orangutan. He is very physically active, spending a great deal of his time in trees and eating bananas, and wants to become king of the jungle one day, and when any man made objects turn up he immediately shows great interest.
Shere Khan (voiced by Jason Marsden): An obnoxious and aggressive Bengal tiger. He often tries to lord over the other animals, but his confidence sometimes suffers when faced with actual problems. He is often called "Khannie" by Baloo and Louie. Despite having a smooth English accent in the original film, Shere Khan speaks with an American accent in the series.
Kaa (voiced by Jim Cummings): A young Indian python who wants to hypnotize other animals, but his skills at hypnosis are currently erratic at best.
Hathi (voiced by Rob Paulsen in Season 1, Stephen Furst in Season 2): An elephant who attempts to keep the pals in order but is known to stammer when under stress. He is quite narrow-minded about many things. Later, he develops a huge crush on Winifred, who is his wife in The Jungle Book. He is often called "Little Peanut" by Baloo. Despite having an English accent in the original film, Hathi speaks with an American accent in the series, like Bagheera and Shere Khan.
Cecil and Arthur (voiced by Michael McKean and David Lander) - Two vultures who are constantly hoping for one of the cubs to die so that they can eat them. However, they are never seen as a real threat. Cecil and Arthur resemble two Disney villains Jasper and Horace from One Hundred and One Dalmatians visually or Buzzy, Dizzy, Flaps, and Ziggy from the original film.
Mahra (voiced by Tress MacNeille) - A ruthless baboon that lives in Pinnacle Rock within the wasteland. She and her idiotic sons have often antagonized the Jungle Cubs when they enter the wasteland. One particular instance is when she and her sons return from a long journey and she wants a new animal skin blanket after her old one is destroyed.
The animal stars of Disney's 1967 animated film The Jungle Book were regressed to cubs for this syndicated animated series. Jungle Cubs suggested that when they were younger, both the good and antagonistic animals lived together in relative peace.
Each of the characters were given distinct characteristics which reflected their future personalities as seen in The Jungle Book; this creative idea further tied the show in with its film predecessor. Uptight Bagheera, free-spirited Baloo, headstrong Shere Khan, wild Prince Louie, neurotic Hathi, and hypnotic Kaa all returned from the film, putting aside their differences to live and learn together. The show gave a female elephant named Winifred a prominent role; she was (Colonel) Hathi's wife in The Jungle Book.
The cubs brave a variety of jungle dangers, often matching wits with sneaky vultures Cecil and Arthur. Living up to new federal regulations for educational television, Jungle Cubs offer lessons on friendship, self-respect, and other healthy traits, crafted for an audience of young children.
In the second season of the show, all of the cubs become slightly older and more distanced from one another. (Many are also given different voice actors.) And, although they still remain good friends, they are getting more and more busy with their own lives and spending less time at their fort, the Cub House (Louie's future palace). Bagheera becomes more serious and uptight than before and Hathi begins spending more time with Winifred than with the other Cubs. The biggest change, however, is Shere Khan: he spends a lot of time hunting, as Bagheera and Kaa do, and as the series progresses, begins to become more annoyed with the other cubs than before. He even attempts to overthrow Louie at one point, using Kaa (who did not really get a choice in the matter) as a henchman. Kaa, as well as Baloo (with the exception of his friendship with Louie), does not really change much. He still remains sneaky and uses his hypnotism power.