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 clever, and very funny, and they all want to push the scripts along. It's a very exhausting process, and by the end of it we all swear we'll never, ever, do another one. But then you start to think how rare it is to get so many good people in the same room and you talk yourself into doing another series." Rowan Atkinson and Tony Robinson reprised their roles as Edmund Blackadder and Baldrick respectively. Hugh Laurie also returned to play Lieutenant George. The fourth series enlarged the principal cast from the third series to include Stephen Fry as General