Riff Tamson was a Karkarodon male who served as a commander for the Confederacy of Independent Systems during the Clone Wars. A ruthless warlord, Tamson acted as an envoy on behalf of the Separatists, heralding their arrival while perturbing political stability in various star systems. In 21 BBY, Tamson was sent by his master, Count Dooku, to the planet Mon Cala, assassinating their Mon Cala King, Yos Kolina, in an effort to dampen race relations between the Mon Cala and Quarren populations sharing the planet.