Although not a standard guest appearance, the regular 'couch gag' at the opening of season 22 episode 'MoneyBART' was notable in that it was animated by enigmatic British artist Banksy. The dark sequence features the camera panning from the Simpsons' couch to reveal Asian workers drawing animated cells and making Simpsons merchandise in a sweat shop housed in the 20th Century Fox logo.

Another sinister guest couch gag came in the second episode of season 23, and featured the Simpsons drawn in the style of Ren & Stimpy creator John K.