Altogether, Uncle Max tends to act pesimistically towards everything, especially the concept of getting eaten.
Uncle Max is the uncle of Timon, and it is assumed that he is either the brother of Buzz or Ma. He lives in a colony of meerkats, far from The Pridelands. In the film, Ma asks him where Timon is until the tunnel is collapsed by Timon's "handy work". Because Ma wants Timon to fit in with the meerkat colony, she requests of Uncle Max to assign Timon to lead the sentry duty. At first, he is very reluctant, but he ends up mentoring him. When Timon is caught off-guard singing "That's All I Need" while on sentry duty, he was nearly eaten by Shenzi, Banzai and Ed who infilitrated the colony, but he recovers.
Later on in the film, Rafiki tells Ma that Timon is "looking beyond what he sees" and he follows Ma as they go look for Timon. Near the climax, he is reunited with his nephew Timon and meets Pumbaa. Timon and Pumbaa make a plan with him and Ma to build a trap to keep the hyenas away from Simba. Along with Ma, he builds a tunnel while Timon and Pumbaa stall the hyenas. The tunnel he builds with Ma initially fails leading to Timon to finish the tunnel which leads to the downfall of Scar and the hyenas. When Timon finishes the tunnel, he hugs Timon so hard that he feels nearly choked. Finally, he is present with Timon, Pumbaa, and Ma as they see Simba take back his throne.
Role in the series
Uncle Max reprises his role from the movie, and is now living in the Dragon Guardian Temple alongside Ma and the other meerkats, even though this is now including the Hyenas due to Scroopfan's reformation of them in the spongebob version of the lion king.