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 Tanya Hubbard as Emergency Nurse #2 Havana Guppy as Girl #2 Mittita Barber as Hostess Veenu Sandhu as Senator's Aide Shaughnessy Redden as Doctor #1 Eliza Norbury as Lisa Duffy Nikolas Filipovic as Nate Duffy Melanie Walden as Resident Doctor Dean Atwal as Scientist Chelsea Bourdages as Young Woman Herod Gilani as Celebrity Look-alike Madison Guppy as Girl #1 Ron M. Knight as Older Man Uncredited Michael Cerveris as September