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Doctor Eggman (Sonic X)

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This character exists primarily or exclusively within the Sonic X continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
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Quotation1 So, we were transported into this world by Chaos Control. Very well then, I will rebuild the foundation of the Eggman Empire here. And soon, I'll rule the entire universe! Quotation2
Dr. Eggman, "Sonic to the Rescue"
Doctor Eggman
First appearance

"Chaos Control Freaks"

Voice actor(s)
voice actor(s)

Mike Pollock

voice actor(s)

Chikao Ōtsuka

Biographical overview




  • Eggman
  • Dr. Egghead
  • Doc
  • Doctor
  • El Gran Gordo
Physical description



185 cm (6 ft)[1]


128 kg (282 lbs)[1]

Alignment and character traits


  • Robots that have the power to destroy Sonic
  • The Chaos Emeralds
  • Anyone who will help him take over the world
  • Rouge (to a degree)
  • Tricking Knuckles into doing his dirty work
  • Ella
  • Sonic
  • G.U.N.
  • Metarex
  • Sonic's friends (for the most part)
  • Anyone else who tries to destroy Sonic
  • Murder
  • Anyone else who tries to conquer or destroy the world
  • Losing
  • Quitters[2]
  • His robots messing up
  • Being double-crossed
Powers and abilities
  • Genius level intellect
  • Brilliant expert mechanic and inventor in both mechanics and robotics
  • Above super genius level intellect in all variants of science
  • Highly proficient in many forms of piloting, aerial fights and driving

Doctor Eggman (ドクター・エッグマン Dokutā Egguman?), real name Robotnik,[3] is the primary antagonist of the anime series Sonic X and its comic series published by Archie Comics. He is a mad scientist whose ambition is universal domination. He is aided in his schemes by two sidekick robots, Decoe and Bocoe, as well as his messenger Bokkun and his arsenal of ruthless robots and high-tech terrornauts.[4]


Dr. Eggman was born on Earth but under unknown circumstances, he was transported to Sonic's world.[5] During his life, he had attempted numerous times to carry his ambitions for achieving world domination but was thwarted by the heroic efforts of Sonic the Hedgehog and his friends.


New World Saga

One night in Sonic's world, Dr. Eggman possessed all seven Chaos Emeralds with Cream the Rabbit and Cheese held hostage at his base; it seemed that the doctor was able to achieve his goal. However Sonic attacked the base which eventually led to an accident causing Chaos Control which transported him along with Sonic and several of his friends to Earth.[6] At Earth, Dr. Eggman was displaced at a distant island in the Southern Sea and planned to conquer Earth.[7] He began to take over Station Square using his robot E-23 Missile Wrist and although they both wrecked much havoc in the city, Sonic thwarted the doctor and Missile Wrist, saving the day.[8]

Eggman heard news of a discovered Chaos Emerald and heads over with his E-11 Beacon to retrieve it. The doctor discovered Sonic was after it as well and orders Beacon to intercept him while continuing to look for the emerald himself. When Eggman found it, Chris snatched it before he could and the two persistently fought over the emerald in the sky. While Eggman managed to send Chris falling to his doom, he realised that he lost the emerald.[9] After Eggman tricked Knuckles into blaming Sonic for being stuck in the human world, Knuckles insisted he challenged Sonic to a duel. The next day, Eggman captured Chris, Amy and Tails who were having a picnic using E-47 Pumpty and happily rooted for Knuckles. The echidna soon realized he was being duped and teamed up with Sonic to save the others before taking out on Eggman himself.[10] Eggman realized that in order to take over the planet, he needed respect and decides to go through with the children first and called forth E-51 Intelligente to brainwash the school kids in Chris' school. Eggman later discovered that Intelligente was disobedient, only getting the school kids to like the robot. Eggman then arrived at Chris' school and threatened to disassemble Intelligente which forced the robot to follow his original order and kept Chris and his classmates after school. Sonic though rushed to the kids' rescue soon and defeated Intelligente. Impressed, Eggman tried to offer Sonic, Chris and his classmates a badge but they all panned it before the doctor took his leave.[11]

Eggman dispatched E-90 Super Sweeper in order to suck up satellites in space to build robot parts. He watched while his robot managed to stop Sonic and Tails but then sees it defeated when the heroes returned with the all-new X Tornado.[12] Later, he attacked the Emerald Coast and attempted to remodel it into the Eggman Scream Park but was then interrupted by Sonic. Taking advantage of Sonic's weakness of water, Eggman ordered his E-38 Octoron to drown him but was defeated due to Amy who aided Sonic. The doctor then called in his Serpenter but Amy dealt with it quickly before whacking Eggman down into the water.[13]

Eggman challenged Sonic and his friends to a winner-takes-all baseball game at Diamond Stadium where the winner would claim the Chaos Emeralds discovered there. While Eggman's team of E-21 Ballios robots were winning at first, Sonic's team edged into the lead which motivated the doctor to detach one of his robots' head to kill Sonic but Knuckles saved him. However, Eggman managed to escape with one of the Chaos Emeralds.[14] While enjoying a peaceful nap at his base, he was interrupted by E-70 Noizi's alarm which notified him of intruders attempting to take his Chaos Emerald. Eggman headed to see what was happening, only to realise that Rouge and Topaz just defeated Noizi and the doctor got caught in the robot's explosion.[15]

When Eggman heard news of a Chaos Emerald discovered at Tingalin Villa, he headed there with his E-35 Funfun and found Tails, Chris, Amy and Frances uncovering the emerald. The doctor demanded the emerald from them but when the heroes refused, Eggman ordered Funfun to blow a powerful gale to overwhelm them. Tails tried to fight Eggman back in the X Cyclone but was no match for Funfun.[16] Fortunately, Sonic came to the rescue and defeated Funfun. However, when Tails unearthed the Chaos Emerald, Eggman snatched it at the last second and flew to his base while the heroes pursued him on the X Tornado. When Eggman returned to his base, he realised his base was under attack by the military upon the President's orders. He then tried to shoot down the X Tornado but the plane swiftly avoided his attacks. When Sonic smashed into his base, Eggman confronted the hedgehog in a heated battle using his E-18 Guerra-Hard powered by two Chaos Emeralds. While the doctor had the upper hand, Sonic fought with his might and overcame the doctor once more while retrieving the two Chaos Emeralds. Soon after, Eggman's base exploded, seemingly leaving Eggman out of the picture for the time being.[17]

Chaos Emerald Saga

After Eggman tricked Knuckles and Chris into giving him the six Chaos Emeralds, Chris was held hostage on the Egg Fort II as it took off goes to meet Lucky who has found the final Chaos Emerald and Sonic had to rescue him. Eggman, Decoe and Bocoe then transform the Egg Fort II into the E-99 Eggsterminator. Sonic then comes up with a plan to defeat the machine, using his speed. But Eggman uses the 6 Chaos Emeralds Knuckles and Chris gave him to enpower the Eggsterminator. The Eggsterminator then attacks Sonic and punches him into the building and Sonic pretends to be hurt, and then the Eggsterminator then goes out of control and continues to pound Sonic very hard. Eggman is impressed by the strength of his robot but also slightly scared by its power. Then the X-Tornado arrives while Sonic is faking an injury, who is still willing to rescue Chris no matter what and tells Eggman that nothing can stop him.

Suddenly, the robot uses an extra burst of energy and slams Sonic into the ground repeatedly. Eggman is afraid of his robot now and is angry at it for using all the power from the emeralds, leading to Eggman order it to stop as he could not bear to see Sonic getting hurt anymore. In response, the robot lifts up Sonic, now unconscious, and throws him into the air before slamming him once more into the sea.

Chaos Saga

Shadow Saga

Egg Moon Saga

Emerl Saga

Homebound Saga

Metarex Saga

Dr. Eggman's role as the main villain is taken over by the Metarex and their leader, Dark Oak. At one point, he joins the Metarex, but is later caught stealing their technology by Pale Bayleaf. Once he is rescued, he joins with Sonic and his friends as allies for the rest of the series in order to defeat the Metarex. At the end, he resumed to his evil ways again and starts to build the Eggman Empire, albeit more in a light-hearted manner.

Archie Comics


In the 4Kids Entertainment crossover The Fight for the FoxBox, Dr. Eggman attended a meeting with other villains where they were each entrusted with a FoxBox broadcast code by a mysterious voice who would then control the FoxBox network in the villains' favour. However, Sonic confronted the doctor at his fortress where the hedgehog managed to fool the doctor into asking Decoe to read out the code. Eggman then ordered a robot to attack Sonic but it accidentally destroyed the machine in the centre of the room, initiating a blast of energy surrounding the base.


Despite having a few evil moments in the series, this version of Eggman is considerably more lucid and overall sympathetic than most other community. Clearly not having problems with kidnapping and threatening to inflict harm, he does, however, think it to go too far by actually hurting his hostages and dislikes to harm humans and animals alike; for example, when the Metarex begin to beat up a captive Chris and Cosmo, Eggman criticized them for their malicious behavior towards the two. Earlier in the series, when the Eggsterminator was brutally beating Sonic, Eggman could not bear to watch and even ordered the robot to stop and give Sonic a break.

In contrast, he seems more flamboyant than most of his other counterparts, as he is frequently seen showing off, although he retains some of his normal version's personality, such as his immaturity. He also appears to be a fan of baseball, as seen in Unfair Ball, where he makes the main characters play a baseball game against him and his team for a Chaos Emerald.


Sonic the Hedgehog

Eggman's relationship with Sonic is very complex, often running the gamut between mortal enmity and a light-hearted friendly rivalry. One example is in an episode where Eggman manages to collect six Chaos Emeralds, Sonic tries to fight the Emerald-powered Eggsterminator losing terribly. Eggman asks Sonic to surrender because he can't bear to watch and even asks his robot to give the guy a break. Another example is from episode 53 when he willingly saves an unconscious Sonic at the beach.

Decoe, Bocoe and Bokkun

Eggman frequently treats them in a torturous manner and likes to make them feel miserable. He has created them to be more of his company, and that could be the reason he built them with a deeper conscience and soul than any other robots. Even if he sees them as friends for which he seems to feel upset when they turn their back on him, he doesn't miss a second to torture them.


  • Eggman considers himself the main character of Sonic X and names the show Eggman X (this is a recurring gag in the Japanese version).
  • Eggman breaks the fourth wall the most in the show by constantly bringing up the fact that it is an anime.
  • Eggman is the second character to use the most English in the Japanese version, second to Sonic himself.
  • In "Testing Time", when Eggman comes to Sonic's rescue he shows no fear of Sonic's transformation, nor anger and actually smiles.
  • In the comics where Eggman was under the alias of "El Gran Gordo", it translates in Spanish as "The Big Fat Guy".
    • Coincidentally, the first letters of each word spell "EGG".
  • Eggman's blood type is type B.[3]


Sonic tshirt head (1) An image gallery is available for
Doctor Eggman (Sonic X).


Sonic X OST - Eggman - Track 301:55

Sonic X OST - Eggman - Track 3

Sonic X OST - Eggman Machine - Track 802:44

Sonic X OST - Eggman Machine - Track 8

Sonic X OST - Dark Eggman - Track 3600:53

Sonic X OST - Dark Eggman - Track 36

See also


  1. 1.0 1.1 1.2 File:Sonicx-ep4-eye1.jpg
  2. Sonic X episode 10, "Unfair Ball": "If there's one thing I hate more than a meddling hedgehog, it's a quitter!"
  3. 3.0 3.1 File:Sonicx-ep49-eye2.jpg
  4. Dr. Eggman. Archived from the original on 27 March 2014. Retrieved on 8 March 2014.
  5. Masake, Hiro (30 October 2004). "Project: Shadow". Sonic X. Season 2. Episode 33.
  6. Miki, Koji (23 August 2003). "Chaos Control Freaks". Sonic X. Season 1. Episode 1.
  7. Miki, Koji (13 September 2003). "Sonic to the Rescue". Sonic X. Season 1. Episode 2.
  8. Miki, Koji (20 September 2003). "Missile Wrist Rampage". Sonic X. Season 1. Episode 3.
  9. Miki, Koji (27 September 2003). "Chaos Emerald Chaos". Sonic X. Season 1. Episode 4.
  10. Miki, Koji (4 October 2003). "Cracking Knuckles". Sonic X. Season 1. Episode 5.
  11. Miki, Koji (11 October 2003). "Techno-Teacher". Sonic X. Season 1. Episode 6.
  12. Miki, Koji (25 October 2003). "Satellite Swindle". Sonic X. Season 1. Episode 8.
  13. Miki, Koji (1 November 2003). "The Last Resort". Sonic X. Season 1. Episode 9.
  14. Miki, Koji (8 November 2003). "Unfair Ball". Sonic X. Season 1. Episode 10.
  15. Miki, Koji (15 November 2003). "Fly Spy". Sonic X. Season 1. Episode 11.
  16. Miki, Koji (22 November 2003). "Beating Eggman, Part 1". Sonic X. Season 1. Episode 12.
  17. Miki, Koji (29 November 2003). "Beating Eggman, Part 2". Sonic X. Season 1. Episode 13.

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