Melora Hardin previously appeared in the season 5 episode "Never a Child" as a runaway who was lured in by a child pornographer. She is best known for her role as Jan Levinson on the American version of The Office.
This episode has been the object of extraordinary harsh and unobjective criticism. The main blame is that it adjudges the punk scene extremely and failed completely to portray it in a realistic way. Personally, I can't evaluate if these blames are at least partially valid. However, the criticism of some lyrics of punk songs which was done in the episode doesn't seem wrong to me. However, I would say, this episode is not a highlight of the show, seeing the quality of dozens of other episodes in it.
Fourth appearance of Emily and the second one, in which she has a major role in (after "Baby Rattlesnakes"),after she did not appear in four episodes in a row before this one.