Jonathan Bailey has prepared a manual on how to be a Bridgerton leading man or leading lady to pass on to his on-screen siblings for when it is their turn to be the focus of the show.
Based on the popular book series by Julia Quinn about each of the Bridgerton children: "The Duke and I" (2000, Daphne), "The Viscount Who Loved Me" (2000, Anthony), "An Offer From a Gentleman" (2001, Benedict), "Romancing Mister Bridgerton" (2002, Colin), "To Sir Phillip, With Love" (2003, Eloise), "When He Was Wicked" (2004, Francesca), "It's In His Kiss" (2005, Hyacinth) and "On the Way to the Wedding" (2006, Gregory).
The costume designers gave the two main ton families two very distinct color palettes. The Bridgertons typically wear pastels in shades of blue and pink, while the Featheringtons wear very bright colors and heavily patterned clothing that is often a shade of yellow or green.
The costume department asked Jonathan Bailey to try different white shirts and sprayed him with water to find the perfect shirt for Anthony when he falls in the lake.
Lady Whistledown, in the first chapter of the first novel, describes the Bridgertons as: "By far the most prolific family in the upper echelons of society. Such industriousness on the part of the viscountess and the late viscount is commendable, although one can find only banality in their choice of names of their children. Anthony, Benedict, Colin, Daphne, Eloise, Francesca, Gregory, and Hyacinth- orderliness is, of course, beneficial in all things, but one would think that intelligent parents would be able to keep their children straight without needing to alphabetize their names."