Lom

The Lom were a deadly alien race, considered worse than even the Daleks and Cybermen by the Seventh Doctor. (COMIC: The Grief) They were ancient enemies of the Kork, much like the Rutans and the Sontarans. The Tenth Doctor thought they were particularly dangerous. When members of either species were brought to the Edifice, they continued to fight. (AUDIO: The Forever Trap)