The inside of her large ears and her palms are pink. She has three big toes on each foot, with sharp beige claws. She has long arms and stumpy legs with big feet. Penelope's tail is large, so she accidentally knocks things over with it from time to time. Her neck, chest, belly, and the web of her wings are beige, and so are the horns from the top of her head to the end of her tail. Penelope has large blue-green eyes and long eyelashes, and small white teeth. Penelope has much softer features than her father, and her scales are brighter. She resembles him in that they are both purple, but the similarities end there. Penelope is much smaller than her father. Penelope is a young dragon, though she finds it hard to fit through human doorways, and she is around Rapunzel's height. Penelope sometimes finds Hobie irritating due to him being sarcastic a lot of the time. Hobie is always more logical and reluctant. She is also loyal to Rapunzel and tries to help her whenever she can. Penelope is polite and supportive of Rapunzel and her artwork, and she can think quickly when she and her friends are in trouble. However, when her father says she is a real dragon, she becomes more confident in her abilities.

Penelope feels as if her father is never happy around her, much to her dismay, and tells Hobie he never smiles around her. Penelope is afraid of any insects, and snakes and spiders, and heights, though later, she carries Rapunzel over the magic wall. Her father, Hugo, finds her lack of flying and fire-breathing skills disappointing because she is meant to be terrifying. She is very helpful and eager to prove her dragon abilities to her friends, her father and herself. Penelope is a nice, funny and clumsy young dragon. Hobie pranks Penelope by saying there is a spider which causes her to jump and make a hole in the floor. While Gothel is resting the three friends explore the cellar more and Rapunzel still wonders why Gothel kept this from her. They start cleaning but Gothel calls Rapunzel for her tea so Penelope and Hobie continue without her. Hobie blows some dust off a book causing Penelope to sneeze and make a shelf fall. As it turns out, it was given to Rapunzel on her 1st birthday, but this is a shock to the three friends as Gothel told Rapunzel her parents abandoned her when she was a few days old. The three friends go down and discover several things including a trunk full of ball invitations, a picture of Gothel with a man whose face is cut out but the one that they are intrigued by is a silver brush.

While preparing Gothel's tea, Penelope accidentally sends the tray flying into the air while they save (almost everything), the spoon lands on one of the dragons by the fireplace revealing a secret room. She loved watching Rapunzel paint and was always willing to help whether it was cleaning up or helping Rapunzel with her chores. Penelope is a young dragon who is friends with Rapunzel.

Barbie as rapunzel penelope