In the pilot, Britne Oldford was cast as Sandra Black (renamed Bell) and Lyndon Smith was cast as Allison Anderson (renamed Adams). However, both roles were recast with other actresses. After reshooting the pilot with the actresses replacing Oldford and Smith, Britt Robertson and Jasmin Savoy Brown respectively, and having already shot the second episode, production on the show was temporarily shut down in mid-September 2017 in order to rewrite existing scripts for the rest of the season to adjust the show to Robertson and Brown's new dynamic.
Rege Jean Page would later be on another show that executive producer Shonda Rhimes did Bridgerton. In the first season he played love interest Simon Basset, Duke of Hastings.