Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki

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Ben Tennyson
Adam Tennyson (16).png
General Information
Species Human EVO
Home World Earth
Residence Bellwood (Dimension X)
Age 10 (Special Delivery flashback)
16 (Omniverse)
Affiliations Omni Force
Tennyson Industries
Team Tennyson (formerly)
Forever Knight (formerly)
Occupation(s) Hero
CEO of Tennyson Industries
Powers and abilities
Abilities Enhanced Intelligence
Enhanced Eidetic Memory
Enhanced Inventing
Nanite Manipulation
Curing other E.V.Os
Machine Creation
Enhanced Strength
Enhanced Durability
Enhanced Speed
Enhanced Agility
Nanite Absorption Immunity
Keen Investigative Skills
Exceptional Leadership Skills
Expert Martial Artist
Equipment Goggles
Omega-2 Nanite
Relatives Rex Salazar (boyfriend)
Gwen Tennyson (cousin)
Max Tennyson (grandfather)
Aliases Ben 10
Ben X
Doctor Tennyson
Nicknames Robot Me, Smart Me (Ben Prime)
Nerd, Robot Ben (Kevin Levin)
Brother (Alpha)
Egghead (Ben 10,000)
Alternate Counterparts Ben Tennyson (Prime Dimension)
Ben 10,000 (Ben 10,000's Dimension)
Ben 10,000 (Ultimate Ben 10,000's Dimension)
Ben Tennyson (Race Against Time Dimension)
Ben Tennyson (Reboot Dimension)
Ben Tennyson (Dimension 23)
Ben Tennyson (Gweniverse)
Ben Tennyson (No Watch Dimension)
Bad Ben
Nega Ben
Mad Ben
Ben 10,000 (Reboot Ben 10,000's Dimension)
Ben Tennyson (Original Series Dimension)
Ben Tennyson (Alien Force Dimension)
Ben Tennyson (Ultimate Alien Dimension)
Ben Tennyson (Omniverse Dimension)
Ben Tennyson (Road Trip Without Gwen Dimension)
Ben Tennyson (Maximilian's Dimension)
Ben Tennyson (Evil Ben's Dimension)
First Appearance [[Ben 10/Generator Rex: Heroes United]]

Doctor Benjamin Maxwell Tennyson, also known as Ben X, is an alternate version of Ben Tennyson, a hero, a scientist, an inventor, a plumber and the CEO of Tennyson Industries in Dimension X.


Regular Appearances

Ben X's physical appearance has changed from a ten-year-old to a sixteen-year-old. However, he retains some recurring characteristics. He has short brown hair, brown eyes, pale skin, and he's quite skinny for his age, though he shows a lot of muscle definition due to being athletic.

In Ben 10/Generator Rex: Heroes United and Omniverse, Ben X wears a black shirt, a blue jacket with white stripes and the number 10 on it, blue jeans, and black and white Converse-style shoes. He wears the Omniwatch on his left wrist.

In Special Delivery flashback in which he was 10 years old, Ben X worn a black and blue shirt with the number 10 on the top left corner, dark blue cargo shorts, white socks, and black low profile sneakers. He worn the Omniwatch on his left wrist.

Occasional Appearances

In Special Delivery, he wore Rex Salazar's red-orange patterned jacket.

In And Then There Was Ben and various Ben 10 (Reboot) episodes, he worn a pair of blue goggles on top of his head.

In Which Watch, he wore a blue spacesuit.

In Roundabout: Part 1 and Part 2, the 10 on his jacket was replaced with a Forever Knight logo.


Ben X was shown to be less immature and behaves far less recklessly than Ben Prime, and shown to think ahead of his enemies. He is polymathism, which is accompanied by an inflated ego and sharp tongue: he likes to praise himself for his works, and often mocks people for their comparatively lower intelligence. Also, he can be easily caught off guard when he accomplishes anything or witnesses something unexpected and new which excites him, because of his reliance on his intellect. In this state, he is vulnerable to any surprise attacks.

Perhaps Ben X's greatest and most well-known trait is his sense of justice. A firm pacifist, he believes that science should be used for the sake of humanity, and harshly opposes using it for war. His selflessness and sense of duty causes him to try and shoulder the burden alone rather than involve others, whether he can carry that burden or not. This altruism intensifies the guilt he feels for his role in deaths that follow him. While generally calm and composed, Adam is prone to making poor judgement during emotional turmoil. He has also displayed good leadership skills. He would fight to protect those in his care and would react with devastation if harm befell them, as well as willing to sacrifice even his own life for others. He also forgave his enemies for all their crimes, going so far as to convince them to change for the better.

Powers and Abilities

Like all living things on his Earth dimension, Ben X has billions of nanites inside his body. After activation, the nanites mutate a normal being into an EVO. However, unlike most EVOs, Ben X has the ability to control his nanites at will, due to a large blue nanite called the Omega-2 Nanite that was injected into him, which allowed him to use his nanites to communicate with a variety of machines and other Nanites, EVO curing, create machines, enhanced physical condition, regeneration and immunity to nanite absorption.

Ben X has a genius intellect, specializing in physics, mechanical engineering, electrical engineering and robotics. He has great analytical and deductive skills and is a very good fighter.


Ben X possesses a pair of blue goggles with various functions and the Omniwatch that allows him to transform into any of his aliens at will, due to having unlocked the Master Control, as well as traveling through space and time.


Like other organic beings, Ben X is vulnerable to being erased from existence by a Chronosapien Time Bomb.


Ben 10: Ultimate Alien


Ben 10: Omniverse

Season 3

Season 5

Season 7

Ben 10 (Reboot)

Season 2

Season 3

Season 4

Season 5