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 series. Only in the "Back & Forth" millennium special was the shooting once again on location, because this was a production with a budget estimated at £3 million, and was a joint venture between Tiger Aspect, Sky Television, the New Millennium Experience Company and the BBC, rather than the BBC alone. Each series tended to feature the same set of regular actors in different period settings, although throughout the four series and specials, only Blackadder and Baldrick were constant characters. Several regular cast members recurred as characters with similar names, implying, like Blackadder, that they were descendants. Various actors have