MR prevents most NPCs from entering the elevator. MR also has a chance to cut out the lights during intermission, obstructing all of the player's screens with a black background. After the lights go back on, MR will look at the nearest player. If any other NPC is in the elevator, MR will burn them in flames after the lights go back on, resulting in them dying.
For a voice ref i'd say the doctor from poppy playtime.
He relly just needs a calm voice.