Pets or Machine or Strange creatures who have strong connection with Crewmates or Imposters, this little creatures will follow they owner not matter what, this also will help they owners as they can, if the owner dies, they will never leave they side, always together

Crewmates with engineer role, this are specialist in mechanic stuff, so if there a sabotage in the place they always go first to fix it!, plus, this are the only ones who are allowed to go into the vents so they have full access to go into the vents and go more fast into places if they saw something!

they have eyes on everything, no ones safe, not even a imposter, they always checking cams or any technology they can use to see what everyone is doing in real time, they always the first one to know everything first, and mostly they know who is lying

Results of Scientifics Crewmates, failures or succesfull, they mostly are contained or still experimental to look a objective for the good of the world or just to make a monstrosity to doom all,mostly all this experiments are using crewmates or creating something new, this also not experiments have to be from "living things"

The villain ones, Aliens from an unknown planet, monsters with disturbing body, the ones who make the crewmates be afreid, these guys even are mostly the bad guys, not mean everyone is, there some imposters who are good guys and don't wanna make harm!

Crewmates who are abel to sarcrifice then selfs to save other crewmate or goths of crewmates who protect living crewmates in the other side from imposters, they will try they bets to keep they friends save from the imposters, if someone who still alive is here, you know what will happen