Suggested Profiles shown on the photographer's computer are for Matthew Mulot (Juggler/Mime Artist) and Amelia Tyler (Creator of Things). This is a shout-out to series producer Matthew Mulot and assistant art director Amy Tyler.
When Allison asks the ghosts with ghost powers to show off for the ghost hunters, Mary explains that the burning smell reminds her of being burned at the stake. She then says, "And for that reason, I'm out." This is a direct quote from the American reality series Shark Tank where aspiring entrepreneurs pitch their business ideas to a panel of investors who decide whether to invest in their business or not.