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 the Third decided not to continue playing the character of Lord Percy for fear of being typecast, although he appeared in a guest role in episode three. In addition to McInnerny, Stephen Fry and Miranda Richardson, who had played major parts in "Blackadder II", appeared in guest roles. Fry and McInnerny would return as regular performers for the fourth series of "Blackadder". The opening theme is this time a minuet played on a harpsichord, oboe and cello over close-ups of Blackadder searching a bookcase. The credits and title appear on the books' spines, and each has a condition and script to match