Other Blackadders
Although not appearing within their own series or one-off special, various other Blackadders have appeared or been alluded to over the course of the series. Most prominently is Sir Edmund Blackadder, who appears in the Comic Relief special Blackadder: The Cavalier Years. Set after the English Civil War, Sir Edmund is (apparently) a loyal royalist and friend of Charles I of England, played by Stephen Fry. This Blackadder also appeared in an introductory sequence for Charles, Prince of Wales' fiftieth birthday Gala Performance, in which he was supposedly organising a birthday show for Charles II (also Fry).
Several relatives of the Blackadder family include the Puritan Whiteadders, and the Highlander clan of MacAdder.
Various one-off specials have introduced other Blackadders throughout history, from the Roman Centurion Blaccadicus, to a Grand Admiral Blackadder in the distant future who becomes ruler of the universe.
In 2002, during the Golden Jubilee of Elizabeth II trailers for the Party at the Palace featured the Keeper of Her Majesty's Lawn Sprinklers, Sir Osmond Darling-Blackadder, who was against the idea. Sir Osmond also co-hosted the light-hearted documentary on the celebrations Jubilee Girl. He is notable for being one of the few members of the family not to be named Edmund, and also for his double barrelled name, suggesting a family connection to Kevin Darling.
Read more about this topic: Edmund Blackadder