Oobi is the titular protagonist of the Oobi series.
Oobi is a curious puppet with an eye for adventure. He explores the world around him in small steps and is always eager to learn something new. Oobi acts as a role model to his younger sister, Uma, who often looks to him for guidance. He has a good-natured demeanor and a keen sense of loyalty to his friends. His favorite color is blue and his favorite toy is a red car.
Oobi has fair skin and pink fingernails. His eyes are dark brown in the shorts and hazel in the full-length episodes of the show. Four fingers act as Oobi's upper lip while his thumb acts as his lower lip.
Oobi has appeared in every episode of Oobi, with the exception of the "Flush!" and "Bongo Drums!" shorts (in which only Uma and Grampu appear). His first appearance was in the "Dance!" short, and his final appearance was in the "Superheroes!" episode.