Jorr

 was a Sontaran. He first one to notice that their ship was dead after an attack by the Rutans. He knew Sontaran laws back to front which meant that he stopped an execution of the Fifth Doctor. (AUDIO: Heroes of Sontar)

Personality
Jorr is pessimistic, sarcastic, grumpy, and aggressive. The Witch Guard described him as a moral sapping doomsayer.

Trivia
Jorr is similar to Private Frazer from Dad's Army, famous for saying 'We're doomed'.