Sid Chang

Sid Chang is a minor character in The Loud House, and a main deuteragonist in The Loud House spin-off The Casagrandes. She made her first appearance in The Loud House Season 4 premiere, "Friended! (with the Casagrandes)", where she appeared as a new girl in the city who became Ronnie Anne's best friend.

Biography
Sid Chang is a new girl in Great Lakes City who is best friends with Ronnie Anne. Sid and her family live in the Casagrande Apartment in apartment 3A. She lives with her parents, Becca and Stanley, and her younger sister Adelaide.

Friended! (with the Casagrandes)
Sid makes her first appearance in The Loud House episode, "Friended! (with the Casagrandes)." In this episode, Ronnie Anne meets Sid at the hot dog cart in the city when she went to get breakfast. When Sid sees Ronnie Anne getting the Great Lakes City special from the hot dog cart, she wants to have one as well. She was later seen when Ronnie Anne was doing a skateboard trick and says she wishes someone saw it, Sid says she did. She then wants to attempt a trick of her own but fails at it. Ronnie Anne then finds out she has no experience and wants to try doing everything she does, making Ronnie Anne realize she is awesome. Ronnie Anne and Sid then hang out on the park fountain, learn about each other's families, and exchange phone numbers.

Later, Ronnie Anne comes out of the Mercado seeing Sid sitting on her apartment building's front stairs. Ronnie Anne then finds out that Sid's parents are applying for apartment 3A. Ronnie Anne then realizes that she can have her best friend, Sid, be her neighbor, and wants to do everything she can to stop anyone else from getting the apartment.

Later, Sid pops out of a trash can doing bird calls. She uses an Amazon Kingfisher bird call which she considers to be perfect for secret missions. She says that it is her first secret mission and she's already getting the hang of it and that her bird call was too good. Ronnie Anne than calls Sid a nut, building onto their relationship.

Sid then sees her new apartment and gets excited about imagining what the rooms will be. Ronnie Anne realizes her bedroom is right on top of hers and they can talk anytime, which Sid thinks is cool. Sid gets attracted to Lalo by feeding him the leftover hot dog she had in her pocket. With Ronnie Anne finding that relatable, she tells Sid that she'll be her best friend for life.

Sid and Ronnie Anne work together to wreck the apartment after finding out that Mr. Sully's friends, the Reynolds are going to check it out so that they won't want it. Sid thinks it is great and makes her almost not want to live there. Bringing back Sid's passion for bird calls, she asks Ronnie Anne what birds call they should use. She suggests the Plum-throated cotinga, but after doing it, she realizes a whole flock of pigeons have appeared in the apartment, so she runs away and says just to text her.

After Ronnie Anne believes her mission has failed, she goes outside to welcome the Reynolds to the new apartment. She then sees a moving van pull up and sees that the Chang's are in there. She gets surprised and doesn't understand why they are taking the apartment. Mr. Scully then explains that he knows that having her "BFF" living next door to her is special so he found the Reynolds an apartment in another one of his buildings. Ronnie Anne and Sid get excited and they know that being neighbors is gonna be awesome. Sid says they can have sleepovers all the time, and eat hot dogs for breakfast, every day. Sid also tells Ronnie Anne about Cheesecake, an albino gorilla her mom rescued from the Congo, who is really good at karaoke.