▁The ▁hot head ed ▁and ▁violent ▁alpha ▁were w olf ▁at ▁the ▁school , ▁he ▁is ▁soon ▁replaced ▁as ▁alpha ▁by ▁Rafael . ▁ ▁Ben ▁Ge ur ens ▁as ▁The ▁N ec rom ancer : ▁one ▁of ▁the ▁cre atures ▁from ▁Mal iv ore . ▁ ▁Nick ▁F ink ▁as ▁Ryan ▁Clar ke : ▁A ▁seem ingly ▁good - n ature d ▁agent ▁working ▁for ▁Tri ad ▁Indust ries , ▁he ▁is ▁later ▁revealed ▁to ▁have ▁sin ister ▁mot ives , ▁and ▁a ▁connection ▁to ▁both ▁Mal iv ore ▁and ▁to ▁Land on . ▁ ▁E bb oney ▁Wilson ▁as ▁K ym ▁( season ▁ 2 ): ▁K ale b ' s ▁human ▁sister ▁with ▁whom ▁M G ▁begins ▁a ▁relationship ▁ ▁Bian ca ▁K aj lich ▁as ▁Sher iff ▁Mac ▁( season ▁ 2 ): ▁the ▁new ▁sh er iff ▁in ▁Myst ic ▁F alls , ▁she ▁has ▁taken ▁over ▁the ▁job ▁from ▁Matt ▁Don ovan . ▁She ▁is ▁also ▁the ▁mother ▁of ▁Eth an ▁and ▁May a . ▁▁ ▁Alex is ▁Den is of ▁as ▁Professor ▁Var dem us ▁( season ▁ 2 ): ▁the ▁new ▁head master ▁of ▁the ▁Salv atore ▁School ▁▁ ▁Thomas ▁D oh ert y ▁as ▁Sebastian ▁( season ▁ 2 ): ▁an ▁over ▁ 6 0 0 - year - old ▁v amp ire ▁who ▁died ▁as ▁a ▁te en , ▁and ▁who ▁appears ▁at ▁the ▁Salv atore ▁School ▁and ▁starts ▁a ▁relationship ▁with ▁L iz zie ▁Salt z man . ▁ ▁Oliv ia ▁Li ang