Thomas the Tank Engine

Thomas the Tank Engine was The Doctor’s arch Nemesis. (PROSE: Fear Her)

After a millennia of battle, began a new adventure and Thomas the Tank Engine started The Last Great Time War, resulting in trillions of deaths (PROSE: Engines of war)

He later gave his life defending melody pond on demons run, alongside the fat controller AKA: Blonfelfochdaypassimerechoochoo Slitheen (PROSE: A good man goes to war)

Growing up Rose Tyler had an irrational fear of Thomas the Tank Engine, The ninth incarnation of the doctor would often go back in time and play the Thomas The Tank Engine theme tune under her bed (PROSE: The Clockwise Man)

As a baby, Alfie Owens had several Thomas toys. (TV: Closing Time)

Behind the scenes
Thomas the tank engine was said have many disagreements with with his co star Sylvester McCoy, many eyewitness account’s suggest they were in an intimate relationship before it (and I quote) “went off the rails”. Sylvester has failed to comment on this.

Showrunner Russel T Davies has gone on the record to say he would often ride Thomas the Tank Engine from Manchester to Cardiff. “Call it a sin if you like, but He just really gets me man..” (PROSE: Doctor Who Confidential)