Plot hole: Throughout the series, Sandy always refers to Daria as "Quinn's cousin" or "that girl that lives with Quinn" or other random titles for Daria (not knowing that Daria is Quinn's sister). Although Quinn admits to Sandy that Daria is really her sister in one of the last episodes of the final season, in this first episode of the series, Sandy is in the crowd watching Daria give a speech and Daria reveals to everyone Quinn is her sister (embarrassing Quinn). Sandy should already know they're sisters.
Daria (1997)
1 mistake in Season 1 generally
Starring: John Lynn, Julian Rebolledo, Tracy Grandstaff, Wendy Hoopes
Trivia: Wendy Hoopes did the voices of Jane, Helen, and Quinn. This explains why sometimes when Helen is talking in an excited tone and her voice goes higher, she sounds exactly like Quinn.
Question: Whenever Kevin talks to Mack, Kevin calls him "Mack Daddy." Mack always responds with "Don't call me that." What is the reason Mack doesn't like to be called "Mack Daddy"?
Answer: "Mack Daddy" was a 90s phrase meaning "Ladies man," and Mack simply doesn't like the stupid nickname.
Brian Katcher