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Sofia is a beautiful young adult Hispanic female and has a tall, slim figure. She has long, black hair pulled back in a ponytail. She also applies red lipstick. She wears yellow earrings, a yellow wristband on her lower right wrist, a yellow sleeveless tank-top, dark blue jeans with a brown belt, and brown chacos with heels. When she is swimming, she wears a one piece light violet swimsuit, and puts an orange sarong with yellow flowers around her waist when she is done.
She is nice, sweet, kind and caring. She likes being with her family, and entertaining the gang during their stay in Mexico. Whenever her family members gets worried or upset, she comforts them on the shoulder. She is also worried about El Chupacabra. She is also confused about Fred Jones's Spanish speaking.
Scooby-Doo! and the Monster of Mexico
Alejo Otero introduced his entire family (including Chiquita). After Fred thought that some of the other kids were Alejo and Sofia's children, she laughed along with Alejo, but Alejo corrected Fred, saying that it was only Jorge. Sofia saw Scooby-Doo falling in love with Chiquita in the pool, telling Alejo.