3 ms·Only one character in Portal? Don't forget about the Weighted Companion Cube. That character is pure genius.by gizmo 16y agoOnly one character in Portal? Don't forget about the Weighted Companion Cube. That character is pure genius.jerf 16y agoUltimately, the weighted companion cube is simply an extension of GlaDOS. As a character, it exists entirely in her monologue; certainly the literal box is not a character, inasmuch as it is simply a box.wwortiz 16y agoYou must have killed your companion quicker than anyone else.