Kier Eagan figurine, the four “tempers” are introduced as “Woe, Frolic, Dread [and] Malice.” Eagan elaborates that “each man’s character is defined by the precise ratio” of these tempers “that resides in him.” Controlling these tempers is the center of Eagan’s philosophy.
https://books.apple.com/us/book/severance/id1613220757
https://screenrant.com/severance-numbers-sorting-four-tempers-theory-explained/
https://www.etsy.com/listing/1191086728/severance-tv-four-tempers-mug-woe-frolic