Characters in other media
- Doctor Ivo Robotnik (Adventures of Sonic the Hedgehog), from Adventures of Sonic the Hedgehog
- Doctor Robotnik (SatAM), from Sonic the Hedgehog
- Doctor Robotnik (Sonic the Hedgehog: The Movie), from Sonic the Hedgehog: The Movie
- Doctor Robotnik (Sonic Underground), from Sonic Underground
- Doctor Eggman (Sonic X), from Sonic X
- Doctor Eggman (Sonic Boom), from Sonic Boom
- Doctor Eggman (Archie), from the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics
- Doctor Eggman (Light Mobius), from Light Mobius
- Doctor Kintobor, the Moebius counterpart of Doctor Eggman in the Sonic the Hedgehog comic series
- Doctor Eggman (Shogakukan), from the serialized manga published by Shogakukan.
- Doctor Eggman (Mirror Dimension), from the Mirror Dimension.
- Doctor Eggman (Morpho's dimension), from Morpho's dimension.
- Lord Eggman, from a dimension where Sonic the Hedgehog does not exist.