Professor Paradox
Profesor Paradox is a time traveling professor who can travel anywhere in space or time and within reason. While he forgot his true name from centuries being trapped in a separate reality, he now goes by the name "Professor Paradox" after taking a liking to being referred to as such. He is voiced by David McCallum.


Paradox is described as a calm, free-going man. He talks much like a stereotypical scientist, with dialogue requiring higher knowledge to understand completely. In his first appearance, Ben (as Swampfire) tried to capture Paradox (not knowing whether he was an enemy or not) but he always "teleports" to a place a few meters away. Ben asks how does he do that and the calm Paradox just said: "It's called walking". He really likes gumballs possibly because they virtually don't age. He also has a habit of getting events that haven't happened yet (from the perspective of the viewer and those he's talking to) and those that have (from his perspective) mixed up, due to his travels through time. His calm personality also makes it difficult to tell when he's joking or not, such as telling Kevin that if his replacement car (factory new from the past) comes in contact with anything else from the same year it'll explode like anti-matter.

Powers and AbilitiesEdit

Due to his time in entrapment, Paradox knows how the space-time continuum works, allowing him to teleport to any location, both in time and space, slow down or speed up time as he pleases, giving him nearly limitless power, though he states there are places he cannot go and things he cannot do, though what restricts him is not yet explained. His abilities are not limited to this universe, having apparently been to other universes and the space in between. He is able to regress a person's age but seems incapable of doing it on something mechanical, instead having to pull it physically out of the past. He can also manipulate his personal time to make it appear as if he is moving (to everyone else's perspective) at superhuman speeds, but is actually just manipulating time around him and is still moving (in his perspective) at a normal velocity. He is capable of teleporting people, objects and even places like the Forge of Creation to almost any destination instantaneously without any trouble. However, he does have to follow certain rules; for example, he cannot bring the past and future versions of an individual together unless absolutely necessary. Additionally, his time travel powers have left him biologically immortal, with no need to eat or sleep. He is also capable of reverting Ben from an alien back to his human form as he did to Alien X. He can also seemingly travel to other dimensions although this is never seen.


According to Alien Force: In the 1950's, an unnamed scientist having discovered special properties in quartz crystals, Paradox received government funding to break a hole in the space-time continuum. But a slight miscalculation (that caused the professor to turn timeless) and an explosion accidentally caused by his panicked assistant Hugo (the reason for the experiment going wrong - turning Hugo into a extra-dimensional creature), threw Paradox into the event horizon, where he remained for a hundred thousand (100,000) years. He was displaced outside of time, where he didn't age, sleep or eat, just exist. He went insane for a while but then got bored and regained his sanity. He soon had complete understanding of the space-time continuum.

Paradox used his understanding to travel across time, making different parts of history better for others. He said he would help Ben save the "whole entire universe".

Paradox soon learns that the accident sent an extra-dimensional creature fifty years from the time of the experiment. He traveled to the Alien Force time to stop it, meeting Ben's younger self. After a few fights with the creature, Ben told Paradox to take them all back to the accident, where it is discovered that Hugo was the creature. He was frightened and confused, but turning everything to dust. By preventing Hugo from being sucked into the event horizon, it negated his time-accelerating existence. After returning to Ben's present, Paradox was stoked that he didn't see it in the first place. He took an older Hugo to a behind-the-scenes look at eternity.

Paradox left the trio one last gift, Kevin Levin's regressed car, factory new from 1976. But a note warns him that if the car comes in contact with anything from that era, it would explode like antimatter. Dwayne McDuffie has confirmed that the note that Paradox left Kevin was merely a joke.

Paradox then later appears in the two part, season two finale, War of the Worlds meeting Azmuth to take him away from the Highbreed invasion and goes to assist Ben in fighting the Highbreed. In this he seems to be able to stop time, as his watch flashed and he just zapped past a bunch of DNAliens.

Paradox appears in the Ben 10 episode Time Heals where he tells Gwen that time traveling is for immortals and fools. Later, he informs Gwen of the dire consequences her actions have caused.

Ultimate AlienEdit

Paradox appears in the episode of Ultimate Aggregor by giving advice to Kevin. It is revealed he divided the Map of Infinity into four pieces in the past.

In Perplexahedron, it is revealed he also created planet Perplexhahedron to hide the final piece of the map from those who would misuse its power.

Paradox appeared in The Forge of Creation, having the key to stop Aggregor from tapping into the power of Alien X by helping Ben and his team getting there and he also took 10 year old Ben home. Paradox also can't be within 500 light years near any Celestialsapien, although why he isn't allowed to go near them is currently unknown.

Paradox appeared in Ben 10,000 Returns to visit Ben 10,000 and helps Ben 10,000 and Ben's team foil Eon's evil plan. At the end of the episode, he asked Ben 10,000 to restore Swampfire and Way Big. He also gives a warning to Ben's team about Old George and The Creature From Beyond before leaving with Ben 10,000.


Aware that the the universe had been destroyed in So Long, and Thanks for All the Smoothies, and replaced with a near identical one by Alien X.

Sometime in his life, he was busy fighting a time war. apparently losing his right hand and replacing it with a robotic prosthetic. He had disguise his Chrononavigator (his pocket watch, noted as the key "to the multiverse") for safekeeping,

He managed to trap Eon in the main timeline to prevent him from crossing into others to cause chaos.

He returns in Ben Again,  where he's lost his professor look and now has, as Ben describes it, a Steampunk general look. Following Eon switching the minds of 11-year-old Ben and 16-year-old Ben, Paradox goes fives years into the past to talk with 16-year-old Ben following Max warning him not to give spoilers about the future. He infroms Ben of his involment in the time war are the reason for his lost hand and that he has gone to great lengths to prevent Eon from causing havoc. However, Eon finds him and cuts off his right hand, which is actually his disguised pocket watch, and takes him to an alternate dimension to be interrogated. As he is not a liar, Eon knows he doesn't have the Chrono-Navigator with him and goes to take it from 11-year-old Ben. When Eon begins to use the Chrono-Navigator to bring his minions into the main timeline, time begins falling apart. He is freed from his shackles thanks to 11-year-old Gwen and 16-year-old Gwen. Instructing both Bens to use Clockwork to place Eon between both periods of time, the timeline is restored to normal and all memory of the event is removed by Paradox. 

The original Ben 10,000 later comes looking for him in 16-year-old Ben's era, saying that the Chronosapiens have gone rogue and Maltruence's beasts are on an inter-dimensional rampage, said this time war is getting out of hand.


  • It is noted that by the author Paradox was aware of the events occured in Return of Rasputin. Despite not making an appearence the author stated if he had it would not go well at all between him and Tracy. Though in a deleted scene it is stated Paradox was originally going to be in the story but was replaced by a small romance scene with Tracy and Seamus.
  • It is possible Paradox knows the parent identity of all the MCF girls and knew of Tracy and Tricia's identity of being princesses earlier.
  • It is possible since Paradox explained that he knows about different universes he possibly is aware of the two alternate universes both created by Tracy's actions. This is stated true since he is responsible for acting like he was 'destroying' Tracy when Alt. Tracy Phantom made her first debut appearence in Ultimate Enemy.
  • He is stated to make a regular appearence in Tracy 10: Omniverse.
  • It is confirmed that Paradox is aware of the events that occured in Thanksgiving Mystery and knows of the events in Masters of Spinjitzu.
  • According to Ultimate Enemy (a fanmake of Danny Phantom's Ultimate Enemy written by trachie17) he subsituted for Clockwork and knows about Alt. Tracy and informed him about it after the events.
  • It is confirmed by the authoress he knows about the events that happened in MCF and the Ice Queen.

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