In the film, Teetsi is first seen asleep on a rock. When Alex returned, Makunga was all happy. Teetsi said that he thought Makunga hated Zuba. Makunga said he did, and he would use Alex to get rid of Zuba. When Alex was about to enter the lion arena, he was tricked by Makunga into picking Teetsi, who was stronger. Teetsi punched Alex as he was doing a "dance fight", giving him a black eye.
It is unknown what happened to Teetsi afterwards.
Teetsi is sometimes thought to be the secondary antagonist of the film.