Daria was at one point Barney's girlfriend or one-night fling. It is unknown what happened to her as she is never seen with Barney again. Daria made a brief appearance in "Bart Gets an "F" singing "Winter Wonderland", holding hands with Barney and Ms. Mellon. Since then she has not made any future appearances.
- Episode – "Simpsons Roasting on an Open Fire"
- Episode – "Bart Gets an "F"" Holding hands with Barney and Ms. Mellon during Winter Wonderland scene