Serena

Serena is Alien X's voice of love and compassion. She first appeared in X = Ben + 2. Paradox is not allowed to be closer than 500 light years to her and Bellicus, or any Celestialsapien for that matter.

Appearance
Serena looks like a female green human face with very realistic features. In Omniverse, her appearance is altered because of the new animation style.

Powers and Abilities
Serena, along with Bellicus (and by extension Ben), has the ability to warp reality.

Weaknesses
Due to Alien X not being able to do anything without a consensus from two of the three parts of its personality, Serena is relatively powerless on her own.

Serena can be terrifed by Toepick's face.

Alien Force

 * X = Ben + 2 (first appearance)

Ultimate Alien

 * The Forge of Creation﻿ (first re-appearance)
 * The Ultimate Enemy: Part 2 (flashback; cameo)

Omniverse

 * So Long, and Thanks for All the Smoothies (first re-appearance)

Video Games

 * Ben 10 Alien Force: Vilgax Attacks

Trivia

 * In X = Ben + 2, Serena said she thinks Pluto should have been a planet instead of a dwarf planet. She even asked Ben to vote on it.