Former Doctor Who companion Billie Piper (for the 9th & 10th Doctors) acts here with Matt Smith who would go on to become the 11th Doctor (after David Tennant).
The red paisley waistcoat JJ Feild (Fred Garland) wears is the same costume Chris Gorell Barnes wears in The Regency House Party (2004), and Dan Stevens (Edward Ferrars) wears for Edward's arrival at Norland in Sense & Sensibility (2008).
The striped dress Billie Piper (Sally Lockhart) wears is the same costume previously worn in North & South (2004) by Daniela Denby-Ashe (Margaret Hale) and in Bleak House (2005) by Gillian Anderson (Lady Dedlock).