The zoo that the character Aimee walks out of at the end of this episode was filmed at the entrance to Auckland Zoo.
The street Gideon Place which Dr Singh goes down is a nod to the comic book series Gideon Falls, which Jeff Lemire wrote.
The Essex County zoo is a nod to writer Jeff Lemire's acclaimed graphic novel Essex County, set in Ontario, Canada.
A store in the background of one scene has a sign reading "Plutona" a reference to writer Jeff Lemire's comic book miniseries of the same name.