credit on the series to date. Amy Madigan, who plays Olivia's mother Marilyn, also returned in a guest appearance. Previous guest stars Seth Gabel, Kirk Acevedo, Ryan McDonald, and Michael Cerveris returned as Lincoln Lee, Charlie Francis, Brandon Fayette, and September the Observer, respectively. The episode also featured one-time guest actors Kendall Cross as Nurse Joyce and Françoise Yip as Dr. Rosa Oporto. Leading up to the episode's broadcast, Fox released a "movie-style trailer" as a promotion, something they had previously done with "Entrada" and "Marionette", two episodes from earlier in the season. The video recapped the Peter/Olivia/Fauxlivia love triangle from Fauxlivia's perspective and then previewed scenes in "Bloodline". As with other Fringe episodes, Fox released a science lesson plan in collaboration with Science Olympiad for grade school children, focusing on the science seen in "Bloodline", with the intention of having "students learn about gestation and how it is different from species to species." Cultural references Accelerated growth of yet-unborn children was a major plot element of "The Same Old Story", the second episode of the first season. While eclampsia is a real medical condition that can interfere with childbirth, the "viral-propagated eclampsia" presented in this episode is fictional. When Henry is located by the Fringe division, he is seen reading an "Opus the Peahen" comic, the parallel universe's counterpart to the "Opus" comic strip drawn by Berkeley Breathed. Also within the parallel universe, the movie Taxi Driver is shown to have been directed by Francis Ford Coppola rather than Martin Scorsese (though Robert De Niro was still able to improvise the "You talkin' to me?" scene), while the television series The West Wing is shown to be entering its twelfth season. Reception Ratings "Bloodline" aired the day after Fringes fourth season renewal was announced by Fox Entertainment, which came in the wake of various actors communicating directly with fans to watch the series. Actor Lance Reddick noted of the renewal, "I know so often fans think that they need us... but I would be digging ditches or something else if it wasn't for you. So — thank you. Really." SFScope columnist Sarah Stegall was surprised but delighted by the network's decision, stating "That any network, let alone Fox, had the patience and the faith to renew this show is, for me, little short of a miracle. It was a week, it seems, for wonders." "Bloodline" first aired in the