Anecdotes

This has been one of Sky 1's most successful dramas, even more than Fortitude.

One of very few Stan Lee projects not based on any preexisting comic book or animated material.

A second season was announced after the final episode aired in the UK due in 2017.

Stan Lee: in all three seasons: Season one he appears in a book shop signing an autograph. In Season two he is standing on the train platform next to Harry. In season 3 is appears in Hong Kong on top of a building in a bar.

Stan Lee: appearance in episode 1 of the third season.