Ensign Roberta Luke is a Voyager bridge officer in Scientific Method who dies when one of the Srivani's hidden experiments drives her body into fatal collapse, provoking Janeway into drastic action.
Roberta Luke is a Starfleet ensign aboard Voyager who appears in the fourth-season episode Scientific Method.
She is one of many crew members being used without their knowledge as test subjects by the Srivani, who move unseen through the ship. While on duty on the bridge she suddenly goes into convulsions as the alien devices attached to her send her circulatory system out of control. The Doctor and Seven of Nine cannot save her.
Her death comes just after Janeway has confronted the Srivani and been told that fatalities will be kept to a minimum. Furious and already suffering from their experiments on her own body, the captain takes the helm and steers Voyager between two pulsars, forcing the intruders to flee.