Bells (Blackadder) marks the first appearance of the Bob/Kate and Flashheart archetypes that appear again in "Blackadder Goes Forth". Rik Mayall, who played Lord Flashheart, allegedly designed the character's costume himself. John Lloyd has said that Mayall virtually rewrote his part to feature "loads of jokes", which annoyed the writers, Curtis and Elton. It was the only episode of the series to feature location filming, at Wilton House in Wiltshire. The music performed as Blackadder courts "Bob" is Vaughan Williams' "Fantasia on Greensleeves". In 1993, in conjunction with Comic Relief, this episode was given away free on cassette tape with boxes of
Blackadder Goes Forth the cast, with Richard Curtis having the final say on the content. Fry, Laurie and Atkinson were comic writers and performers themselves, and having worked together on previous series were not afraid to question the script and make suggestions. For example, Captain Darling was originally called "Captain Cartwright" and was renamed when Stephen Fry recalled a boy at his school with the surname "Darling", who had found the name a constant embarrassment. Curtis recalls that he was initially reluctant to change the name, as he considered it a one-off joke. Speaking to "The Times" about the ending of the show