First time Matt Rutherford speaks.
After being forced to change her Goth look, Tina comments that in one outfit, plain pants and a sweatshirt, she feels like a member of the Branch Davidians. In 1993, the Branch was the target of the now-famous Waco siege, a joint ATF/FBI operation that lasted 51 days and resulted in the deaths of 76 cult members and four ATF agents.
In this episode Rachel's Mom asks her how her dads came up with the name Rachel. She responds by saying that her dads were big Friends (1994) fans. In season four, Rachel's dance teacher, Cassandra July, calls her little Schwimmer. David Schwimmer played Ross in Friends (1994).
While the drummer, bassist, and guitarist graduate in season 4, there is a cellist who is in multiple seasons, starting in season 1 and into season 6.