Before Shannen Doherty's difficult behaviour made working with her an impossibility, there was another bad girl doing the rounds on Beverly Hills, 90210.
Emily Valentine remains one of the show's most iconic characters more than two decades after the show's heyday.
Elise would end up dating Jason Priestley, while Luke Perry made sure she had someone to sit with at lunchtime - a very high school concern which seemingly spilt over into real life.
The female cast-members were hardly lunch buddies, though. "And - as a guest on a show - you always feel awkward and vulnerable, so someone just not going out of their way to be nice feels hostile [...] So, she wasn't warm and fuzzy but that worked for the storyline and did not bother me, per se, because I did not go to work every day to find new besties.
On her first day on set, the producer pulled her into his office and gave her some advice."He said, 'The guys are really great.
I can't make any promises about the girls'." The producer was right on both counts.
For those who weren't cognisant during the show's initial years, it may be hard to understand just how popular this show was in the 90s.