Creator Simon Barry originally wrote the script as having a male lead called 'Kyle' and not Kiera.
Victor Webster, who plays Carlos, does MMA training three times a week, and enters MMA events.
As the show deals with time travel, it is only fitting that each episode title relates to that. In the first season, all episodes have the word "Time" in their titles, such as "Wasting Time" or "Playtime". In the second season the writers expanded on the idea and named each episode something with "Second". This can be read as both the time measurement, but also an indication of the season the episodes belongs to.
When Cameron and Fonnegra are speaking to the medical expert that informs them that what has been removed from the victims' brains, they are leaving Library Square, home of the main branch of the Vancouver Public Library.
'Chris Gauthier' plays a character named Vincent in this episode. He also played a character on Eureka named Vincent.
There is no 'Giroux Cinema' (shown in the first scene after the credits) in Vancouver and the marquee appears to have been added in post. The post-production supervisor's name is Todd Giroux.
When Emily first returns to Alec's lab after her run-in with Kellog, the board that Alec is tinkering with when she first arrives is an existing system on board known as a Raspberry Pi.