Ben 10: Ultimate Alien/Episodes

The following is a list of episodes for Ben 10: Ultimate Alien. A total of fifty-two episodes have been ordered so far. Episodes 1 through 10 were intended be season 1 and episodes 11 through 20 were to be season 2 but it was merged into one season due to Cartoon Network's schedule. The Transmogrification of Eunice was intended by the people who made Ben 10: Ultimate Alien to be the start of a third season. However it had been split into more than one season.

Note: Some episodes may not be aired in the order on the DVD and in the order of their production.

Unknown Number

 * Inspector Number 13
 * Unnamed Ultimate Alien Episode