For many young Whovians, Christopher Eccleston was their first Doctor. While he may be known as the Doctor who only stayed for one series - a mere thirteen episodes - he managed to propel Doctor Who to the BBC juggernaut it is today.
Eccleston may have been an unlikely choice for the 900-year-old Time Lord, previously known as a serious actor from gritty independent dramas, but his presence gave Doctor Who some much-needed gravitas. With his Northern accent, leather jacket and buzz cut, he was a fresh and grounded reimagining of the previously pompously dressed (and pompously spoken) character.
Without his broody demeanour, sparkling chemistry with Billie Piper, and love for the word "fantastic", Doctor Who would have been a relic that remained firmly in the 1980s. Whereas Nu-Who typically celebrates David Tennant and Matt Smith, it is important to remember that they wouldn't be around if it wasn't for this Doctor.
While Eccleston is underrated, it is easy to forget that his series was a very mixed bag of classic episodes and extremely bland ones. This is natural, as the series was finding its feet in a new century, but it is worth taking a trip back to 2005 to separate the hits from the misses.