5 Significant Retcons In TV Shows

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Television shows can have some complicated and deeply entrenched lore. Shows that run for years and years dedicate a lot of time to establishing the world of the show and the backstories of the characters. However, sometimes all of that gets thrown out of the window in favor of a retcon.

Sometimes a retcon is needed to further the story, other times it's seemingly unnecessary. But either way, a retcon isn't always a bad thing. Retconning has been done in many major television shows, it can be a great way to create a twist or surprise plot point. From secret regenerations to beheaded people coming back to life, this list looks at five TV shows that had significant retcons.

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In Doctor Who, time and space-hopping Time Lord, The Doctor, is known to be able to regenerate into a new body when he is mortally wounded. In the history of the show, it was stated that a Time Lord can regenerate 12 times, meaning after their thirteenth incarnation, they would die. The concept of regeneration changed, however, when it was revealed in Series 7 of the show that after his eighth regeneration, The Doctor became The War Doctor.

Previously unknown to audiences or The Doctor himself, The War Doctor was born into the Time War after his eighth incarnation refused to fight in the war. He was allowed the chance to control his regeneration to become who he needed to be to fight the war. This already negated the previous laws of regeneration, which only got further stretched with the Thirteenth Doctor and the introduction of The Timeless Child.

First appearing in Season 2 of Supernatural, The Trickster soon became a fan favorite character. Pretending to be a janitor at a university, The