|Home World||Null Void|
The Null Guardians are artificial creatures that are native to the Null Void.
Null Guardians have no eyes, legs or arms and instead they have tendrils coming from their lower body which they use as limbs. They look somewhat like Vulpimancers with tentacles hanging from the undersides and wings. They are capable of firing red lasers from their mouth and flying.
Galvans created the Null Void as a prison for their criminals, and created the Null Guardians to protect alien colonist from violent criminals, in a way the Null Guardians could be considered the prison guards or "guardian angels" of the Null Void. Null Guardians can be used to ride and can be easily tamed as shown by Vilgax and Kevin 11 in Back With a Vengeance and Dr. Animo in Voided.
- Nor Iron Bars a Cage (first re-appearance)
- Ben 10: Alien Force (Video Game) (DS) Levels: Warehouse, Cave and Tower.
- Ben 10 Alien Force: Vilgax Attacks (DS) Levels: Bellwood, Null Void and Bellwood Revisited.
- Ben 10 Ultimate Alien: Cosmic Destruction (DS) Levels: Paris and Venezuela.
- Punch Time Explosion
- Punch Time Explosion XL
- Null Guardians are one of the species created by the Galvans, the others being Galvanic Mechamorph and Voliticus Biopsis. This technically makes them related.
- The pop-up version of Back With a Vengeance declared that their species was named "Nullvoiders" and that they were the only indigenous lifeforms in the Null Void, but this has been retconned.
- They share the similar mouth structure with Wildmutt.