Rose McIver Samantha Actor Utkarsh Ambudkar Jay Actor Brandon Scott Jones Isaac Actor Richie Moriarty Pete Actor Danielle Pinnock Alberta Actor Asher Grodman Trevor Actor Román Zaragoza Sasappis Actor Sheila Carrasco Flower Actor Rebecca Wisocky Hetty Actor Devan Chandler Long Thorfinn Actor John Hartman Nigel Chessum Actor Betsy Sodaro Nancy Actor Caroline Aaron Carol Actor Deniz Akdeniz Chris Actor Allegra Edwards Donna Actor Christian Daoust Jenkins Actor Steven Yaffee Baxter Actor, Writer Cat Lemieux Cholera Victim Cat Actor Stuart Fink Cholera Victim Stuart Actor Nigel Downer Cholera Victim Nigel Actor Arthur Holden Creepy Dirk Actor Joe Port Executive Producer Joe Wiseman Executive Producer Mathew Baynton Executive Producer Jim Howick Executive Producer Simon Farnaby Executive Producer Laurence Rickard Executive Producer Ben Willbond Executive Producer Martha Howe-Douglas Executive Producer Alison Carpenter Executive Producer Debra Hayward Executive Producer Alison Owen Executive Producer Angie Stephenson Executive Producer John Timothy Writer Christine Gernon Director