In "InTODDnito", Darcy celebrated her birthday. While originally sending Todd to pose as her so that she would attend an event, Lisa gave up on attending and attended Darcy's birthday party after getting Todd away.
In "Close Encounters of the Nerd Kind", Darcy dressed as a pirate and went through the Loud family's haunted house. Though she was not scared by the costumes worn by the Loud sisters, she was scared off by the three aliens that helped the Loud family out while Lisa worked on alternative fuel source. As Darcy ran out of the house, Lucy Loud took her picture. Darcy ran to her mother scared and then stated that the haunted house display was awesome.
Darcy is essentially the opposite of Lisa. She is sweet, kind, fun-loving, energetic, and always acts her age. She also has a strong sense of humor, finding Lisa's use of large words (such as "formaldehyde") amusing. Though initially unaware that Lisa was taking advantage of her, she genuinely comes to see her as a friend and was heartbroken when Lisa abruptly ended their friendship.
However, she is shown to be generous, forgiving, and compassionate, as she gave Lisa a cookie when she noticed Lisa was feeling down even though the latter had upset her, which led to them being friends again. She is also sympathetic to Lisa so she can get her grade A back on social skills on Lisa's report card again.
Darcy is a little dark-skinned girl, with short dark brown hair, and three pairs of eyelashes. She wears a sleeveless cyan shirt with a pink flower on it, yellowish shorts, pink socks, and white LED light-up shoes. She also has a pink band-aid on her right leg, which shows that she has a small wound.
By "InTODDnito", Darcy has noticeably become taller than before.
The Loud House Encyclopedia