You and Lucinda Nicholson, that is so hot
—Brenda to Brandon
A Pig Is A Boy Is A Dog is the 23rd episode of Season 4 on FOX teen soap Beverly Hills, 90210.


Brenda and Donna attend an animal rights rally, and are crestfallen when the university refuses to suspend animal testing. After Rocky dies of cancer, Brenda becomes involved with a small group of radicals. She serves as lookout when the group breaks into the university research building and tries in vain to save Andrea's lab (which does not harm animals in its testing). Brenda is arrested. Kelly and Brandon are furious when Dylan refuses to fund Lucinda's film. He finally tells Kelly that Lucinda came on to him. Brandon breaks up with Lucinda and Kelly confesses her kiss with Brandon. Dylan races over to the Walsh house to fight Brandon, but the tension is defused when he accidentally punches Steve.


Jason Priestley as Brandon Walsh
Shannen Doherty as Brenda Walsh
Jennie Garth as Kelly Taylor
Ian Ziering as Steve Sanders
Gabrielle Carteris as Andrea Zuckerman
Luke Perry as Dylan McKay
Brian Austin Green as David Silver
Tori Spelling as Donna Martin
Carol Potter as Cindy Walsh
James Eckhouse as Jim Walsh

Recurring cast

Dina Meyer as Lucinda Nicholson
Joe E. Tata as Nat Bussichio
Joshua Beckett as Josh Richland
Mark Damon Espinoza as Jesse Vasquez

Guest starring

Paul Lieber as Activist
Dan Spector as Allan
Teri Austin as Ingrid
Lawrence Monoson as Jon Farrino


Yeah, can you picture this, me standing there, quaking in the shadow of Lucinda Nicholson's gargantuan feminist intellect
—Damn, Dylan
Kelly, I am not dating Lucinda, we're just sleeping together
—Ooookay, Brandon
And I know Dylan. If all of us are there and we work him a little bit, maybe he'll come around
—Brandon about his 'friend'
Andrea, you're always the one who believes in standing up for a good cause


  • Brenda asks Brandon if Kelly's the girl he's been seeing. Brandon finally tells Brenda that he's been seeing Lucinda
  • Dylan decides not to back Lucinda's film following events
  • Brandon's left-handed
  • Andrea and Brenda disagree on the animal rights matter at campus.