The Bureau of Alien Detectors "BAD" Headquarters is located in Death Valley, Nevada.
During production it changed titles several times. At one point it was Bureau of Alien Destroyers.
In the episode "Gifted" it is hinted at that Casey is of Irish descent. This could explain why she has black hair and blue eyes, which is highly uncommon outside of Ireland.
In some episodes Shane Sanderson appears to have a beard, while in others he is clean shaven. It is unknown whether this was intentional or due to animation issues.