Aliens
King: Queen
Queen: Predalien
Bishops: Drones
Knights: Warriors
Rooks: Praetorians
Pawns: Facehuggers
Predators
King: Greyback (Yautja Elder)
Queen: Big Mama (female predator)
Bishops: Elite spear masters
Knights: Hunters
Rooks: Wolf and Dark (dual wrist-blade brawlers)
Pawns: Machiko Noguchi, Alexa Woods, Caryn Delacroix, Dutch, Mike Harrigan, Royce, Sara Pezzini and Jackie Estacado (apprentices or people who might become apprentices in the future)