Watch 90210 season 1 episode 19 online for free. Kelly and Silver are surprised when Donna (guest star Tori Spelling) shows up at their door, straight off a plane from Japan. Annie and Dixon decide to spend their spring break on a road trip to visit someone from Dixon’s past, while Ethan decides to step out of his bubble and volunteer with Habitat for Humanity. Naomi joins the Habitat build after learning that Liam is also attending, but is clearly out of her comfort zone. While Kelly and Donna are dining on sushi, Diablo Cody (guest starring as herself) convinces Donna to design a dress for her for a red carpet event.