
Oscar,(Left)Poppy, Buck, and Harchi (Right)
Oscar The Lizard

Oscar
If Oscar finds anything interesting, the trio will usually try to take it from him, and in turn Oscar himself will often earn the trio's wrath when he attempts to steal food or drinks from them. Oscar will often hunt flies, with varying success and also often tries to steal eggs. The latter however is very dangerous as the chickens respond very aggressively to the little lizard and won't hesistate to peck him to death.
Although Oscar is somewhat selfish, he will help out others as shown when he helped, Harchie find Popy and Buck in 'Lost' and the Dung Beetles when they had trouble rolling some dung. Unforunately due to his stature, sometimes his hunger as well, he finds himself on the bottom of the food chain, making his daily quest for survival all the harder, and he's only rarely tolerated by the other inhabitants of the desert, who mostly tend to see him as a nuisance at best and a snack at worst.
Oscar however is very determined, and never gives up. In times of danger Oscar will frequently lose his tail, but fortunately it always quickly grows back. And through his poor luck he frequently ends up tangling with the trio even when he's trying to do something completely unrelated to them. One particular exception to Oscar's lowly position in the desert hierarchy is the Skunk. Whereas all the other desert dwellers fear the skunk for his stench, Oscar is unbothered by the smell and frequently tries to befriend the skunk, much to the skunks annoyance. He frequently finds water or food but usally loses it in the end such as with water bottoles breaking and then drying up on the sand or with the flies getting out of him and leaving. He seems to be unaffected by stench as shown when he is able to be smothered in the Skunks armpit and showing little to no reaction tot he smell. Oscar's goal changes from episode to episode but the usual goal is to find food or water at all costs.
Popy The Fennec Fox

Popy
Though Buck and Harchi rarely openly defy her or risk her wrath, they sometimes will try, and succeed, to pull a fast on Popy herself as well. When the trio rides around in their cart or their other vehicles Popy decides where they are going, and she's not above forcing her companions to go faster! In spite of her personality, she does sincerely care about Buck and Harchi. Popy, aided by Buck and Harchi, will frequently attempt to steal food, drink or desireable items from Oscar or Roco and Manolo's truck. In turn she's frequently vexed by Oscar's many attempts to steal food and drinks from the trio as well.
In the OOOHHHasis cartoon shorts, Popy's predecessor was originally a male fennec fox named Panic.
Harchi The Hyena

Harchi
Among the trio Harchi tends to be the most clueless of the lot, and sometimes manages to come out of one of the trio's escapades without ever having really realized what was going on around him. Harchi tends to be better at sports and games then Popy, and likes to rub in his victories, much to Popy's chagrin. The only sport that he seems to fail in is golf where Popy seem to reign triumphant. And he's the most likely between him and Buck to get on Popy's nerves and subsequently be punished by her. Although usually clueless, Harchi can have his clever moments, such as when he was trying to put a horn on the trio's cart when Roco was scaring them with the car horn from his truck. Harchi could be said to be the most childlike and perhaps the most innocent and friendly of the trio, and he's most likely to at least briefly get along with Oscar at times. He is terrified of being alone, and can at times be a bit of a crybaby (which Popy does not put up with). Harchi and Buck clearly care a great deal about Popy, but will nonetheless sometimes defy her if they get an opportunity, an on rare occassion be annoyed with her, when they find out she has cheated them. As Harchi is the strongest member of the trio he usually pushes the trio's cart (or other vehicles), which he generally enjoys doing. He likes taking pictures with a camera, although he's not necessarily very good at it. Once when attempting to make photo's of Popy the trio discovered Oscar was making off with their cart full of food, only because Harchi's photo's where poorly centered. Harchi loves to entertain his friends with things like dances and juggling.
Buck the Vulture.
Buck
His name was Burk in the original OOOHHHAsis shorts.