Cartoon character that starts with x?

There aren't many cartoon characters that start with the letter "X." However, there are a few possibilities:

* Xavier (from "X-Men") - While not the main character, he is a prominent figure in the X-Men universe.

* Xerxes (from "The Lion King II: Simba's Pride") - He is a villainous lion and the main antagonist in the movie.

* Xana (from "Code Lyoko") - She is an artificial intelligence that acts as an antagonist in the series.

* Xolo (from "The Littlest Hobo") - This is a dog from the popular Canadian television series.

Let me know if you'd like to explore other options or have a particular type of cartoon character in mind.