|This character exists primarily or exclusively within the Sonic X continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Epsilon was created as one of Doctor Eggman's E-100 Series robots. After failing to capture Froggy, Eggman ordered Epsilon destroyed. However, Epsilon somehow escaped. Later, Gamma found Epsilon and reprogrammed him, deleting his master. Gamma also made sure of this by destroying a statue of Eggman nearby.