Who She Is: The 25-year-old New Jersey native has a degree in special occasion design from New York's Fashion Institute of Technology.
What She Designs: Don't let the tattoos fool you. Castillo puts her special occasion design degree to use in dresses that are formal, structured, and innately glamorous. She cites Valentino and Vivienne Westwood among her biggest influences.
Why She Might Win: This young designer claims to have "couture sewing techniques" in her toolbox, and her flair for the romantic will likely impress judge Zac Posen.