The 11th Alien: Part 2

The 11th Alien: Part 2 is the fiftieth episode of Ben 10.

Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Max Tennyson

Villains

 * Vilgax
 * Weatherheads
 * Gust-O
 * Hail-O
 * Shock-O

By Ben

 * Shock Rock (first appearance)