Gonds
Gonds were a humanoid species that served the mysterious Krotons and was deliberately kept from developing intellectually at too rapid a pace. Any Gonds that excelled intellectually, however, were rewarded by being killed, so that their mental aptitude could literally be used as fuel for the Kroton spaceship.
Podcast
C047 The Krotons
A society comprising myriad chaps with matching axes and one single woman faces off against homicidal moka pots who secretly attempt to mate with their brain waves