DisembAudio is a robot, often portrayed on the RiffTrax homepage as a robotic toaster. DisembAudio has a mechanical-sounding voice (unlike Tom Servo and Crow T. Robot) who will periodically through a RiffTrax commentary give a line that is said in the movie so that the viewer can either pause the commentary or the movie to allow the other to catch up. Occasionally, DisembAudio will interact with Michael J. Nelson and his co-riffers (if any) for comedic purposes.
At this time, the voice actor for DisembAudio is not known. In a 2012 Reddit interview, Kevin Murphy refused to answer who the magical voice of DisembAudio was when inquired, saying he would go to his grave with that knowledge in hand.