Red Impostor is a red bean-shaped astronaut with floating hands. In the mod, they hold their mic in their left hand, and wields a gun in their right which changes into a knife in their up pose (both of which reference kill animations in Among Us). In all of their poses, they are shown to have a mouth filled with sharp teeth in the middle of their body. They also have a sharp tongue (shown in their up pose) which is used in the Among Us kill animations to stab a crewmate.