Guest Stars Anna Torv as Olivia Dunham (Alt Universe) John Noble as Dr. Walter Bishop (Alt Universe) Seth Gabel as Lincoln Lee (Alt Universe) Ryan McDonald as Brandon Fayette (Alt Universe) Kevin Corrigan as Sam Weiss Co Starring Heather Doerksen as Major Warner Jennifer Koenig as Nurse Gail Andrew Zachar as Tommy Elfina Luk as EMT #1 Richard Ian Cox as Donnie Travis Nelson as Jack Jim Shield as Joe Todd Mann as Alt. MP #1 Forbes Angus as Science Director David Lloyd as EMT #2 Ken Roberts as Landlord Matt Ellis as Ritchie Tobias Der as Scientist Gigi Friedman as Jean Don Ackerman as ER Doctor Sheila Tyson as Mary Uncredited Michael Cerveris as September