The Grandmasters are a group of High Ranking officials that are part of the Eggman Empire, they each lead a Dark Egg Legion chapter somewhere on Mobius and anatagonize their local Freedom Fighters. Grandmasters were formerly exclusive to the Echidna's Dark Legion (and it's later subdivisions: the Flame Legion and the Frost Legion), and their was only one at any given time until the Legion joined the Eggman Empire.
In the Eggman Empire, the Grandmasters succeded the Sub-Bosses and preceded the Egg Bosses.
- Menniker - founder.
- Moritori Rex - banished to Twilight Cage.
- Luger - killed by Lien-Da using Kragok's weapon.
- Kragok - killed during his battle with Tobor when they hit the Battle Cruiser.
- Enerjak - the one who originally made Menniker form the Legion. Host was taken away by Mogul.
- Remington - became Grandmaster of the Frost Legion until his memories were returned by Enerjak.
- Lien-Da - became Grandmaster of the Flame Legion. Then led the Dark Legion under Eggman.
Dark Egg Legion
- Lien-Da - Grandmaster of the Echidna Dark Egg Legion. Trapped in another zone.
- Dimitri - Grandmaster of the Echidna Dark Egg Legion until deposed by Lien-Da.
- Duck "Bill" Platypus - Grandmaster of the Downunda Dark Egg Legion. Double agent for the Freedom Fighters.
- Drago Wolf and Razorklaw - joint Grandmasters of the Soumerca Dark Egg Legion.
- Akhlut - Grandmaster of the Northern Tundra Dark Egg Legion.
- Baron Beauregard Rabbot - unwilling Grandmaster of the Great Desert Dark Egg Legion.
- Bride of the Conquering Storm - Grandmaster of the Dragon Kingdom Dark Egg Legion.
- Lord Hood - Grandmaster of the Mercia Dark Egg Legion.
- Iron Queen - Grandmaster of the Eurish Dark Egg Legion.
- Hugo Brass - former Grandmaster of the Eurish Dark Egg Legion. Demoted.
- Diesel - Grandmaster of the Efrika Dark Egg Legion. Dissapeared after Super Genesis Wave.