General Grievous
The Huk were a race of aliens hailing from the planet of the same name. They are an insectoid species and resemble Geonosians. Their planet was in a constant war with the Kaleesh people of the neighboring planet, Kalee, for many years prior to the Clone Wars and the Great Jedi Purge. The Galactic Republic aided the Huk in their war against the Kaleesh, though this still did not garner enough sympathy for the Separatists to convince General Grievous to join their cause.