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Name: E-102 Gamma
Species: Robot
First Comic Appearance: Sonic Archie comics #80
First Game Appearance: Sonic Adventure
First Show Appearance: Sonic X
Abilities: Can hover for a short period of time, able to transform into two different modes: speed, and combat.
Other Info: After witnessing the fate of Beta, Gamma slowly develops a conscience unique to the other E Series, releasing Amy Rose in remorse. After some convincing from his new friend, Gamma decides to turn against Eggman, to "rescue" the other E-Series robots by defeating them and releasing the small animals used to power them.


Name: E-123 Omega
Japanese Name: オメガ, Omega
Species: Robot
First Comic Appearance: Sonic Universe#3
First Game Appearance: Sonic Heroes
Abilities: Array of extremely destructive weapons concealed in his arms, jet boosters built into his back to help accelerate and hover, sensor used to detect and locate enemies
Other Info: He is the 24th and last of Doctor Eggman's E-100 series robots, specifically designed to contain and control Shadow the Hedgehog.


Name: Espio
Japanese Name: エスピオ・ザ・カメレオン, Esupio za Kamereon
Species: Chameleon
First Appearance: Sonic Archie comics #32
Items used: Chaos Emeralds/ Power rings.
Abilities: Speed, Whirl Attack, Running On Walls & Ceilings, Tongue Attack, Charge Attack, Incredible Balance, Stealth, Whirl-Dash, invisibility.
Other Info: He is described as the "guardian of honor" of the Chaotix


Name: Exceptionally Versatile Evolvanoid
Nick Name: E.V.E.
Species: A.I
First Appearance: Sonic Archie comics #21
Abilities: Combination of Robornik's Genius and Sonic's Ingenuity.
Other Info: She is composed of nanomachines designed morph and adapt after each defeat, a DNA sample taken from Sonic himself, and organic material from Robotnik's own brain.