Tim is a Sales Rep crushingly aware of the pointlessness of his work and the mediocrity that surrounds him.
He is the classic under-achiever who rolled life's dice and got a three. He derives a modicum of pleasure from irritating co-worker Gareth.
From the beginning Tim yearned for receptionist Dawn, the one ray of sunshine in his dreary routine, and even summoned the courage to ask her out - despite the intimidating presence of her boyfriend, Lee.
When Dawn left Wernham Hogg, Tim tried to move on. Then fate (actually a BBC documentary crew) played a part in bringing them back together.