danielle campbell as sydney mccall

"mini mccall"

dylan sprayberry as liam dunbar

"the angry beta"

tyler posey as scott mccall

"the true alpha"

dylan o'brien as stiles stilinski 

"the sarcastic one"

rest of main cast 

holland roden as lydia martin 

shelley hennig as malia tate 

khylin rhambo as mason hewitt 

cody christian as theo raeken

melissa ponzio as melissa mccall

arden cho as kira yukimura

linden asby as noah stilinski

ryan kelley as jordan parrish 

tyler hoechlin as derek hale