Daniela Ruah is a Portuguese actress. Daniela Ruah plays in the series NCIS: Los Angeles. Daniela was born in Boston, the only child of Dr. Moisés Carlos Bentes Ruah and his wife Catarina Lia Azancot Korn. Daniela Ruah has a distinguishable birthmark in her right eye, and her other eye is hazel.

Her father was a Resident in Otolaryngology in the Boston University, Tufts University Program. When she was five years old, her father completed his Residency, and the family returned to Portugal, where she spent the rest of her childhood.