If you haven't gotten enough of Yorgos Lanthimos already, you certainly will after this episode is over. 

SOURCES:

https://www.imdb.com/title/tt5715874/fullcredits?ref_=tt_ov_st_sm

Trolley Problem: https://www.merriam-webster.com/words-at-play/trolley-problem-moral-philosophy-ethics#:~:text=The%20trolley%20problem%20is%20a,to%20kill%20just%201%20person.

Artemis: https://www.britannica.com/topic/Artemis-Greek-goddess

Ending Explained: https://screenrant.com/killing-sacred-deer-movie-ending-explained/