This one only includes;

John
Sherlock
Moriarty

Dean
Sam

No Doctor Who because I wrote them before I got the idea to write this chapter. And not Cas because that character is self explaining.

Enjoy

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Sherlock H.:

The Flash/Arrow

Barry Allen being your colleague. You had worked at the CCPD  for about 4 years as a forensic scientist. After 4 years you were shipped oversea to the British police force, who needed more forensic scientists.

John W.:

Vampire Diaries/Originals

Born after your sister Rebekah, you were one of the original vampires. With your cravings of blood under control and unable to be killed you are the best body finder ever.

James M.:

Scorpion

Sporting an IQ of 198 you were one of the smartest people in the world. you had worked with Scorpion for a while, helping hack some stuff until you decided you wanted to go to England.

Sam Winchester:

The mortal instruments. (The books and movie, not the show)

Having grown up in an institute learned you everything there was to know about demons and other creatures. After reaching the age of 21 you had enough of the shadow hunter life and decided to go to collage

Dean Winchester:

Teen wolf

Your family used to work together with the Argent's so when your parents died you got to live with them. You grew up around guns and weapons. After your 'sister' died you left and decided to hunt on your own for a while.