|Home World||Inside Alien X|
|Affiliations|| Alien X|
|Occupation(s)||Alien X's Voice of Love and Compassion|
|Powers and Abilities|
|Relatives|| Bellicus (counterpart)|
Ben Tennyson (as Alien X; counterpart)
Alien X (host)
|Voice Actor|| Vicki Lewis (Alien Force)|
Tara Strong (Ultimate Alien)
Kimberly Brooks (Omniverse)
|First Appearance||X = Ben + 2|
Serena looks like a female green human face with very realistic features. In Omniverse, she has eyelashes, eyebrows and a more humanoid nose.
Powers and Abilities
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 terrified by Toepick's face.
Ben 10: Alien Force
- X = Ben + 2 (first appearance)
Ben 10: Ultimate Alien
Ben 10: Omniverse
- 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.