Serratos was born in Pasadena, California. Her mother is a jewelry designer, and public relations and marketing agent at ACSPR and is of Mexican descent. Her father is a set construction worker of Italian descent.
At the age of 7, she signed with the Ford Modeling Agency and from then on she started to act in several Nickelodeon TV Series.
- Ned's Declassified School Survival Guide
- Hannah Montana
- Zoey 101
- The Twilight Saga
- American Horror Story: Murder House
- Broken Doll
- She has Mexican, Italian, and Irish Ancestry.
- Serratos is a vegan, as she has posed for a PETA anti-fur campaign in November 2009. 
- Serratos began figure skating at the age of three.