Fellow Crewmates, I have a theory on the Impostors.

My theory is that Impostors are either a form of "The Thing" or some shapeshifting Extraterrestrial.

Point A: a fairly common death animation is a scene of the Impostor's Torso splitting apart. revealing teeth and a Pharyngeal jaw used to impale the skull of a Victim.

Point B: The Impostor can make equipment malfunction from anywhere across the map without touching anything, this implicates a form of telekinesis.

Point C: The Impostor seems to have knowledge of how to be a Crewmate, this is similar to how "The Thing" retain the memory of their victim, meaning the Impostor doesn't have to undergo Crew training to know what to do.

Point D: coming from the previous explanation on "retaining memory from its victim" the Impostor is a different crewmate almost every round, implicating it does kill off-game to become a different victim after either its last Host was either blasted into space or managed to establish victory on the map.

Discuss after reading this, thanks for coming to my TED talk