Ozzy is an adventurous white blood cell who is an officer who keeps his host, Frank Detorre from deadly viruses. Despite Ozzy's rebellious and reckless behavior he is otherwise caring, friendly and forgiving. Ozzy was a bit of a narcissist because in one scene he was flirting with Leah while he was in the Stomach. He's very humorous because in lots of scenes of the movie, he showed a lot of humor towards lots of his friends such as: Drix, Leah, the Chief of Police. He even shows humor towards the villains in the movie such as: Thrax, Mayor Phlemming and different kinds of germs. When Ozzy was saving Frank from Thrax, Ozzy was brave, selfless and heroic. In the television series, he's the same but he's even more humorous in the the television series.
Ozzy is a slender and handsome white blood cell with blue cytoplasm skin. He wears a white shirt with a grayish-brown jacket and with black pants and shoes. He has black eyebrows and goatee.