Doctor Ivo Robotnik, more commonly known as Dr. Eggman, is a human and Sonic's arch-nemesis. He is a mad scientist with an IQ of 300 and dreams of conquering Gaia under the Eggman Empire, but his plans are often thwarted by Sonic and his friends.


Generally, Dr. Eggman is round in appearance. He has a dome-shaped and bald head,a pinkish nose, and a bushy mahogany mustache. He also has blue eyes, but they aren't generally seen because of his glasses.

For attire, he wears a red turtleneck jacket with white trim, yellow cuffs and gold buckles, black one piece pants/boots with silver accents and buttons, white gloves, navy blue pinch-nez glasses, and gray googles.


Not much is known about Dr. Eggman's early life, but was said to have admired his grandfather, Gerald Robotnik, who was a great scientist and would follow in his footsteps. At some point, however, he became obsessed with the idea of taking over the world and began his plans.

At some point, he came to work for G.U.N. as a technical researcher, where he bribed Dr. Julian Snively, his coworker and nephew, into being his chief mechanic. Together, they left G.U.N. and made their way to the Kingdom of Acorn, where they made an alliance with Walter Naugus, the royal wizard to usurp the throne from King Acorn.

Under the lie that G.U.N. was planning an invasion, King Acorn allowed Dr. Eggman full access to the Kingdom of Acorn's resources, which allowed him to set up mines all over the Acorn Archipelago to mine the resources he needed to fuel his robot army in secret. King Acorn soon caught onto the doctor's scheme, Dr. Eggman betrayed both the king and Naugus, banishing them into the Special Zone before taking over Mobotropolis to continue his plans unopposed.

While he was unopposed for some time, this ended when Sonic the Hedgehog first came to fight the doctor and his forces on South Island, which would inspire a group of Freedom Fighters to retake Mobotropolis on Westside Island.


Dr. Eggman is a short-tempered, raucous, pompous,and cruel evil genius who only cares about himself and his creations. He doesn't care who he stabs in the back as long as he achieves his goal. He is the ruthless and megalomaniac leader of the Eggman Empire and has destroyed many live along the way, but has no interest in who he's hurt. Dr. Eggman is a huge supporter of science and technology to the extreme, preferring for the world to be covered by his factories and machines and cares none for Gaia's natural life.

He is very manipulative and is willing to use Mobians, Humans, or even powerful deities in his quest for global takeover, although the latter has often backfired on him multiple times.

Powers and Abilities

Dr. Eggman is a brilliant inventor and mechanic with an IQ of 300 able to create powerful machines of destruction. He is also a skilled pilot and driver, often driving power mechs to attempt and overpower Sonic and his allies. Despite his intelligence, Dr. Eggman's plans often fail because of his own arrogance.



  • Eggman Empire
    • Egg Army
      • Abyss the Squid
      • Akhult the Orca
      • Axel the Water Buffalo
      • Battle Lord Kukku XV
      • Cassie the Pronghorn
      • Clove the Pronghorn
      • Conquering Storm
      • Lord Mondred Hood
      • Maw the Thyclane
      • Monty the Mole
      • Nepthys the Vulture
      • Speedy
      • Thunderbold the Chinchilla
      • Tundra the Walrus
    • Badnik Horde
      • Metal Sonic
    • Orbot
    • Cubot
    • Phage
  • Dr. Julian Snively (nephew; formerly)


  • Breezie the Hedgehog
  • Team Hooligan
    • Fang the Sniper
    • Bark the Polar Bear
    • Bean the Dynamite
  • Babyloan Rouges (formerly)
    • Jet the Hawk
    • Wave the Swallow
    • Storm the Albertoss


  • Freedom Fighters
    • Freedom Fighters
      • Sonic the Hedgehog (arch-nemesis)
      • Miles "Tails" Prower
      • Amy Rose
      • Cream the Rabbit
      • Cheese
      • Sally Acorn
      • Rotor the Walrus
      • Antoine D'Coolette
      • Bunnie D'Coolette
      • NICOLE the Holo-Lynx
      • Elias Acorn
      • Dulcy the Dragon
      • Charles the Hedgehog
      • Annushka "Marsha" Vixi
      • Julie the Echidna
      • Gold the Tenrec
      • Saffron the Bee
      • Angel
      • Cosmo the Seedrian
      • Courtney Kittrege
      • Bridgette Pup
    • Wolf Pack
      • Lupe the Wolf
  • Kingdom of Acorn
    • King Nigel Acorn
  • Knuckles the Echidna
  • Big the Cat
  • United Federation
    • Guardian Units of the Nation
      • Team Dark
        • Shadow the Hedgehog
        • Rouge the Bat
        • E-123 Omega
  • Blaze the Cat
  • Silver the Hedgehog
  • Team Chaotix
    • Vector the Crocodile
    • Espio the Chameleon
    • Charmy Bee
  • Mighty the Armadillo
  • Ray the Flying Squirrel
  • Walter Naugus
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