|Appears in||Ectogenesis" (Alan's dreams)|
|Day of death||Day 5|
|Cause of death||Embolism|
Dr. Doreen Boyle is a veterinary pathologist, which means she specializes in the diagnosis of diseases through the examination of animal tissue and bodily fluids.
Doreen participates in the meeting at CDC headquarters. En route to Arctic BioSystems she chides Sergio Balleseros about him being a glorified plumber. She expresses incredulity when Daniel Aerov tells her that ABS has no monkeys used for experiments. She is later attacked by a monkey.
Doreen dissects the monkey that attacked her and is interrupted by Dr. Tracey. Tracey asks Doreen why she is at ABS then accuses her of lying. She asks Doreen what they should do with her.
Day 3 Doreen finds that the monkey she had been dissecting is gone and the lab cleaned. After Sergio shows her the field of frozen monkeys and collects a sample, Doreen tries to grow a culture and achieves a rapid growth that she kills with extreme cold. She allows Sergio to convince her not to report the finding. She tells Alan that her results with the monkey are inconclusive.
Doreen explains to Sergio that the virus is a way to force human beings to manifest a hidden trait. Before she can report her discovery to Alan, Sergio kills her by stabbing her in the neck,and arranges the lab to simulate an accident, by covering her corpse with a shelf of rats. 
Alan finds Doreen's body partially consumed by rats. He learns from an autopsy that she died from an embolism and finds the puncture mark where she was injected with air.
Doreen Appears to Allan Farragut in a dream, asking him what he is really doing on St. Germain. Telling Alan that he searched for Julia, then tried to stop Illaria, and is now trying to find a cure. She then tells him to wake up. She reappears to Alan in a dream after h is knocked out by a trap set by Mycotics. She asks him why he's trying to find Kyle Sommer, when he is trying to bring in Alan for bombing Illria's building in Paris. She tells Alan that the two of them (Alan and Kyle) are not so different and even look the same if Alan shaved his beard.
|"The White Room"|
|"Vade in Pace"|
|"O Brave New World"|
Note: Doreen appears in The White Room as a corpse only.
|Episodes|| "Pilot" • "Vector" • "274" • "Single Strand" • "The White Room" • "Aniqatiga" • "Survivor Zero" •|
"Bloodline" • "Level X" • "Fushigi" • "Black Rain" • "The Reaping" • "Dans L'ombre"
|Primary Characters||Alan Farragut • Julia Walker • Sarah Jordan • Hiroshi Hatake • Daniel Aerov • Sergio Balleseros|
|Secondary Characters||Peter Farragut • Doreen Boyle • Jane Walker • Anana • Toluk • Constance Sutton • Spencer Chissik • Philippe Duchamp • Sulemani • Victor Adrian • Bryce • Rae Van Eigem • Klein • Thea • Dimitri Marin • Haven • Blake • Tracey|
|Season 1 • Season 2|