Mier was born in Taiwan. She moved to Palo Alto California with her mother and sister when she was 12 years old. She's a versatile actress who excels in both dramatic and comedic roles, Mier studied the Sanford Meisner technique after graduating with a degree in Theater. She can most recently be seen in commercials by Pepsi, Pizza Hut, and Intel. Fluent in Chinese and English, Mier is comfortable playing diverse roles and has participated in independent shorts and feature films in both languages.