Tom Ward, who plays Lt Chamberlayne in this episode, went on to play Colonel Fitzwilliam in Death Comes to Pemberley (2013), an adaptation of P.D. James' sequel homage to Pride and Prejudice.
Adrian Lukis (George Wickham) and David Bamber (Mr Collins) also worked together in episode 4.3 Damned If You Do... (2015) of Death in Paradise (2011) as Francis Davison and Alan Butler respectively.
Julia Sawalha (Lydia Bennet) & Victoria Hamilton (Mrs Forster) also worked together on Lark Rise to Candleford (2008) as Dorcas Lane & Ruby Pratt respectively.
The pink gown with embroidered chiffon overdress Julia Sawalha (Lydia Bennet) wears when Mr. Collins finds her half-dressed in the hall at Longbourn is the same costume worn by one of the dancers at the London ball in Sense & Sensibility (2008).
The white gown with silver trimmings Norma Streader (Lady Lucas) wears to the Christmas party at the Philips' is the same gown worn by an extra at Fanny's ball in Mansfield Park (1999), and an extra at a London ball in Byron (2003).