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E-102 Gamma (Sonic X)

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This character exists primarily or exclusively within the Sonic X anime or comic continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
E-102 Gamma
First appearance

"Pure Chaos"

Voice actor(s)
voice actor(s)

Naoki Imamura

Biographical overview

Dr. Eggman

Also known as
  • Gamma
  • Mr. Robot (by Amy)
Physical description



None (referred to as Male)


215 cm (7ft 1in)


825.256 kg (1819.378 lbs)

Color scheme

Red, Yellow, Orange and Black



Alignment and character traits

Good (fomerly neutral)


Doctor Eggman

Skills, abilities and powers
  • Highly advanced laser targeting system
  • Build-in machine gun that can transform into missile launcher
  • Accurate precision in marksmanship
  • Build-in turbo fan system that keeps Gamma elevated over water
  • High-speed flight
  • Roller mode for high speed movements

E-102 Gamma is a character from Sonic X. He is a robot built by Dr. Eggman to capture Froggy with his brothers E-101 Beta, E-103 Delta, and E-104 Epsilon.


Amy sees Gamma's final moments.

Gamma was created as one of the first of Dr. Eggman's E-100 Series, along with Beta, Delta and Epsilon. After succeeding in capturing Froggy while the others failed, he was ordered to take away Lily, a little blue bird. Amy refused to hand her over, and the robot was stunned. He realized that he was just Dr. Eggman's tool. He rescued Amy and Lily, becoming her friend. Under Eggman's control, he attacked Sonic and then the hedgehog nearly destroyed him but Amy stopped him. Afterwards, Gamma deleted the image of him in his head. He then reprogrammed his brothers. After reprogramming Zeta on the Egg Carrier, Beta attacked him and they engaged in combat. Gamma eventually removed the Flickies inside them and they collapsed, "dying". Their hands were then put together in front of Amy (Japanese version only).


Gamma has a similar personality to his game counterpart, though he was cast with being slightly more emotional and was capable of being frightened and disturbed even before he met Amy, even able to exhibit organic like exclamations such as groaning and at one point even producing a forlorn facial expression (also seen on Bocoe, Decoe andkkun). It still portrays Gamma's naivete towards good and evil however, perhaps best exhibited when he notices Big trespassing on deck, only to ignore him simply because he was supposedly never ordered to attack him.


  • In the English version, Gamma's voice is high-pitched instead of deep like Sonic Adventure.
  • Unlike in Sonic Adventure, Amy sees Gamma destroyed.


See also

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