Dr. Alexandra Castro is a fictional character portrayed by Alexandra Castillo in the TV series Fringe.
In the first episode they appeared in, titled Concentrate and Ask Again (season 3), they were 39 years old.
They appear in 1 episodes out of a total of 100 aired
Episodes1
Concentrate and Ask Again
episode S3.E12 february 2011When a scientist is killed by a blue dust that grinds his bones up, the Fringe Division investigates the case and suspects a biological attack. The investigation leads them to a former marine that flees but is hit by a car. In coma, Walter recalls his Cortexiphan patient Simon Phillips that is capable to read mind. Olivia, Peter and Walter try to convince Simon, who lives in a deserted area, to help them to locate the terrorists, but he is sensitive to other people since he cannot control his ability. Simon agrees to help and also disclose Peter's real feelings for her.