Guest Stars Anna Torv as Olivia Dunham (Alt Universe) Sebastian Roché as Thomas Jerome Newton Gerard Plunkett as Senator James Van Horn Marcus Giamatti as Ray Duffy Shannon Cochran as Patricia Van Horn Co Starring Chad Riley as ND Agent Erica Carroll as FBI Newbie Iris Paluly as Emergency Nurse #1 Jennifer Mawhinney as EMT #1 Veenu Sandhu as Senator's Aide Madison Guppy as Girl #1 Havana Guppy as Girl #2 Tanya Hubbard as Emergency Nurse #2 Shaughnessy Redden as Doctor #1 Mittita Barber as Hostess Melanie Walden as Resident Doctor Eliza Norbury as Lisa Duffy Nikolas Filipovic as Nate Duffy Dean Atwal as Scientist Chelsea Bourdages as Young Woman Herod Gilani as Celebrity Look-alike Ron M. Knight as Older Man Uncredited Michael Cerveris as September