Blackadder is the title that collectively refers to four series of a BBC 1 period British sitcom, along with several one-off instalments. All television episodes starred Rowan Atkinson as the anti-hero Edmund Blackadder, and Tony Robinson as Blackadder's dogsbody, Baldrick. Each series was set in a different historical period, with the two protagonists accompanied by different characters, though several reappear in one series or another, for example Melchett (Stephen Fry) and Lord Flashheart (Rik Mayall).