For NCIS: Sydney’s first two seasons, Bluebird Gleeson’s life outside of her work as a forensic scientist was largely a mystery. Then came the arrival of a mysterious woman waiting in her apartment in the Season 2 finale, and by Season 3’s second episode, we finally learned about Blue’s family and where she came from. However, Mavournee Hazel, who plays Blue, told CinemaBlend that she’s known the details of her character’s past for quite a long time.
