Last night was the season finale of Dallas, and the outfits were just as dramatic as the plotlines! All season long, the show's costume designer, Rachel Sage Kunin, has been giving us the inside details why she chose each look, and for the last episode, she wanted to make every piece count since so many secrets were revealed. "In this scene, the audience finds out what Rebecca could ultimately be after—revenge," Kunin told InStyle.com. "I wanted her to look drastically different for this big cliffhanger, so I moved her away from the soft colors we’ve gotten to know her in and put her in all black." What was your favorite outfit this season? Click through the gallery to see Kunin’s take on 15 more looks from Dallas’s first season.