The Neimoidians are a species that are allied with the separatist forces. They appear in LEGO Star Wars III: The Clone Wars. One is physically released in 75041 Vulture Droid. Nute Gunray was their leader and a member of their species.
The Neimoidian race resides on the planets of Neimoidia and Cato Neimoidia, which is famous for its "bridge" cities. This character appears briefly in Episode III: Revenge of the Sith and in the fourth episode of Season 3 of Star Wars: The Clone Wars, Sphere of Influence.