Alien X

Alien X is the tenth alien appearing in Alien Force. X first appears in the 13th episode, X = Ben + 2. He bears a striking resemblance to DC Comics superhero Starman. An even greater similarity between the two is that Starman claims to hear "voices in his head". It is possible, though not proven, that Alien X is based off of Starman.

First Transformation
Ben first transforms into Alien X in X Equals Ben Plus 2 when he had to stop a dam from collapsing.

Abilities
He possesses vast reality warping powers, meaning he can make his thoughts become reality.

Weaknesses
Serena (voiced by Vicki Lewis), the voice of love and compassion; Bellicus (voiced by Kevin Conroy), the voice of rage and aggression; and Ben, the voice of reason. All three speak in unison when Alien X speaks. In order for Alien X to perform any action, including but not limited to simple movement and transforming back into Ben, two of the three personalities must agree to do so.