When Waverly is using an English accent undercover, Nicole, who is overhearing, tells her "that is the worst British accent I've ever heard". Dominique Provost-Chalkley, who plays Waverly Earp, is in fact British and grew up in the city of Bristol, in South-West England. Her English accent is real (though her real accent isn't so exaggeratedly posh).
When Eliza first walks into the Earp house, Doc makes a comment about her: 'i do not believe we have met.' In fact, the actors who play them, Tim Rozon and Rachel Skarsten have actually worked together before appearing in this show. They played respectively the characters of Massimo/The Druid and Tamsin in the TV show 'Lost Girl'. Shamier Anderson (Agent Dolls) and Katherine Barrell (Nicole Haught) have also appeared in the show but never worked together. Show creator of Wynonna Earp, Emily Andreas worked on the show also, as writer/producer.
This episode introduces Jeremy.
Rachel Skarsten (Eliza) appeared on Lost Girl, as did Tim Rizon (Doc). Both shows were written by Emily Andras