I never wanna do the English voice of Eggman/Robotnik. It's a cursed role.
Eggman has been the primary antagonist in all of Sonic's incarnations, and throughout all of them, a number of voice actors have played him. In the video games, Eggman's voice was provided by Chikao Ōtsuka; he was dubbed over in the English versions of the games by Deem Bristow from 1999 to 2004. 4Kids employee Mike Pollock took over Bristow's role after his death from a heart attack in 2005. The first video game to star Pollock was Shadow the Hedgehog, in which all of the regular voice actors were replaced with the 4Kids cast.
The only person besides Ōtsuka to portray Eggman in a Japanese production is Junpei Takiguchi, who provided Eggman's voice for the direct-to-video film Sonic the Hedgehog: The Movie; Edwin Neal later provided the English dub.
Three different actors voiced Doctor Eggman in his American television incarnations (in which he is called Robotnik). In The Adventures of Sonic the Hedgehog, Robotnik is voiced by British blues singer Long John Baldry, who, coincidentally, died on the same year as Deem Bristow. Robotnik was voiced by Jim Cummings in the ABC Saturday morning Sonic the Hedgehog cartoon, and by Gary Chalk (who also voiced Grounder in Adventures of Sonic the Hedgehog) in Sonic Underground. Eggman is dubbed over by Pollock in the English dub of Sonic X.
Taken from wkipedia.
If I do his voice, I'll die the same year as the previous one does.