The Casagrandes/Instances by character

Sid Chang is the main character in The Casagrandes and a minor character in The Loud House, who made her first appearance in "Friended! with the Casagrandes" and a main tritagonist in the Loud House spin-off The Casagrandes.

Sid is a new girl in Great Lakes City, who moved there with her family. She became friends with Ronnie Anne when she was trying everything new in the city. Later they became neighbors.

Croaked
Season 1, Episode 3b Airdate: October 26, 2019

Adelaide: "Aunt Millie!" [Hugs her, almost throwing Sid off balance.] "You feel, lumpy." Sid: "Thank you sweetie, I've been getting ripped in the afterlife." [She flexes her biceps] Adelaide: [Gasps] "I've got your favourite perfume." [Sprays it in Sid and Carlos's faces, Carlos sneezes.] Sid: "Well that was a great visit," [Carlos keeps sneezing.] "but I'd better get back to the gym, they don't call me Aunt, Treadmillie for nothing."

Her biceps are briefly seen while she and Ronnie Anne are cosplaying as her sister's Great Aunt Milly.