Adam DiMarco was recently in The Magicians, where he was in another secret magic society.
In this episode, Randall (Adam DiMarco) wears a white shirt with Morse code on it. It says "Hi mom."
Randall makes a joke about a show titled "Werewolf on Campus" and how he would totally watch that show. In reality there was a Canadian TV show about a werewolf that aired from 1999-2002 titled "Big Wolf on Campus". The Order is filmed in Canada, with most of the cast being Canadian themselves.