Celestialsapien

Celestialsapiens (A play on "celestial," meaning from the stars, and "sapien," a term for intelligent) is the species of Alien X from the Forge of Creation.

Appearance
Celestialsapiens are fairly simple in physical design. They are silhouette-like humanoids that can range from any size. They have white star-like dots scattered inside their body and three trident-like horns on their forehead. Their face only consists of pupil-less eyes. Celestialsapiens tend to have a rather large size, but Alien X is about the size of a human. A baby Celestialsapien is the size of a human fetus. Likely because of their powers they can be at any size they want.

Personality
They prefer their shrouded existence at The Forge of Creation, as opposed to being involved with the "petty going-ons" of the rest of existance. Celestialsapiens might seem like they have a blank personality, judging by them being frozen, but Celestialsapiens possess multiple personalities. A majority of a Celestialsapien's personalities have to agree with each other for the Celestialsapien to perform any sort of action. When the Celestialsapien speaks, all voices speak in unison and depending on what the voices agree on, they shout either "Seconded!", or "Motion carried!" if they agree, and if they don't, they shout "Motion defeated!". It appears that all Celestialsapiens have a deep grudge or hatred towards Paradox, for a yet unexplained reason. Dwayne McDuffie confirmed that baby Celestialsapiens don't have multiple personalities.

Powers and Abilities
Celestialsapiens are capable of warping reality. This means they are able to alter time and space, and are practically omnipotent. Their reality warping is so powerful, that the personalities can even prevent the Celestialsapien from being destroyed just by agreeing that it won't. However, a Celestialsapien cannot do anything unless a majority of it's personalities agree on it.

Alien X
The Omnitrix's DNA sample of a Celestialsapien is Alien X. Alien X has 3 personalities: Serena, the voice of love and compassion; Bellicus, the voice of rage and aggression; and Ben, who is the voice of reason.

Trivia

 * Dwayne McDuffie has stated that the reason Aggregor wanted to absorb a baby Celestialsapien's powers, is because then he wouldn't have other personalities to argue with Here, or that the two personalities would be easily led.
 * Due to their powers of warping reality, they could have forged reality itself.
 * In The Forge of Creation, it is revealed that Paradox is not allowed to go within 500 light years near them.
 * It appears that, like Ectonurites, Celestialsapiens retain their memories and personality from a single strand of DNA. This is hinted when Bellicus and Serena (two of Alien X's personalities) know about the fact that Paradox is not to go within 500 light years of any Celestialsapien. It is possible that they are all one and they are all connected, although that would open the question if Bellicus and Serena exist in all Celestialsapiens, or if there are different personalities in all of them.
 * According to Dwayne McDuffie it takes a Celestialsapien tens of thousands of years to develop.
 * According to Dwayne McDuffie Celestialsapiens also live in the Milky Way, but they're born in the Forge. http://dwaynemcduffie.com.lamphost.net/forums/viewtopic.php?f=2&t=2104&p=88023#p88023
 * Even though they possess unlimited powers, e.g. omnipotence, they are not gods, as confirmerd by Dwayne McDuffie.
 * Dwayne McDuffie confirms that Celestialsapien is not the most powerful alien in the Ultimatrix, even through the unlimited powers they possess. It is possible that there are aliens that can surpass their powers, or also possess powers similar to Celestialsapiens in the Ultimatrix or likely because having multiple personalities severely limits their potential. Furthermore, unless at majority of the personalities vote otherwise, it can be destroyed through by yet unknown means. This explains why Alien X is not the most powerful alien in the Ultimatrix despite their godlike powers.