Guest Stars Sarah Greene as Hecate Poole Douglas Hodge as Inspector Bartholomew Rusk Simon Russell Beale as Ferdinand Lyle Shazad Latif as Dr. Henry Jekyll Christian Camargo as Dr. Alexander Sweet Samuel Barnett as Renfield Jessica Barden as Justine Perdita Weeks as Catriona Hartdegen Sean Gilder as Marshal Franklin Ostow Brian Cox as Jared Talbot Co Starring Casper Allpress as Jack Brendan Gibson as Rance Mei Bignall as Whore #2 Charlene Gleeson as Whore #1 Jack Hamilton as Fencer #1 Bryan Baker as Museum Employee