Paterson (Survival)

Sergeant Paterson was a man who had been in the British territorially army. He spent time at a youth club in Perivale educating the youths there in survival techniques and encountered the Doctor and Ace, when they came searching for Ace's old mates, he knew something of Ace's past.

Biography
Paterson followed the Doctor after receiving neighbourhood watch complaints of the Doctor's antics (in attempting to lour a kitling), however in attempting to apprehend the Doctor he and the Doctor were teleported to the Cheetah World.

He escaped from the world via being teleported once more by Ace back to Earth, but passed the experience off as a stress related hallucination, however when he returned to the youth club and his students. Unfortunately they had been hypnotised against him by the Master, they killed him following a goading by a possessed Midge. (DW: Survival)