From Sonic Retro

Species: Human
Gender: Male
Series: Sonic the Hedgehog (TV series)
First seen: Heads or Tails

Snively is a character from the Sonic the Hedgehog cartoon and comic book series. He was voiced by Charlie Adler. The cowardly nephew of Dr. Robotnik, Snively was reduced to a lackey shortly before his uncle's takeover of the Kingdom of Acorn of Mobius, and spent the next ten years serving him. Physically abused by Robotnik, Snively began planning against him and, following his Uncle's defeat, attempted to seize power himself. According to the comic continuity, Snively himself was responsible for the death of Robotnik, having programmed his Ultimate Annihilator weapon to wipe the mad dictator from existence.

In the planned third season of the cartoon, Snively was to have tried to rule Robotroplis, but fail. He would then try to free Ixis Naugus to get him to help, and in the process, free Robotnik and King Acorn by mistake. Reduced once again, not simply to a lackey but to an insignificant nothing, Snively would rebel against Naugus and Robotnik and join Sonic and the Freedom Fighters.

Sonic the Hedgehog (Alternate Media) characters
Heroes   Sonic (Super, Dark Super, the Werehog) | Tails (Super, Turbo) | Knuckles (Super, Hyper) | Amy Rose | Cream | Blaze | G.U.N. (Commander) | Emerl | Silver (Super) | Marine | Shade | Sally | Bunnie | Antione | Rotor | Sonia | Manic | Shahra | Knights of the Round Table | Caliburn | Yacker | Cosmo | Sticks
Anti-heroes/ Neutrals   Shadow (Super) | Rouge | Espio | Charmy | Vector | Mighty | Ray | Julie-su | E-102 Gamma | Chaos (Perfect) | E-123 Omega | Jet | Wave | Storm | Merlina | Aleena
Villains   Dr. Eggman | Metal Sonic | Snively | Cluck | Dark Oak | E-Series | Fang | Bean | Bark | Eggman Nega | Battle Kukku Army | Metarex | Black Doom | Erazor | Lyric
Teams   Sonic/Heroes | Rose | Dark | Chaotix | Babylon
Others   Gerald & Maria Robotnik | Chris | Chao | Tikal | Big | E-101 Beta | Heavy and Bomb | Flicky | Animals | Galaxina | Earthia