Although Darling only features as a main character for one series of the original "Blackadder" run, several of his ancestors and descendants are also portrayed by McInnerny, in keeping with the series' ongoing motif of identical descendants. The "Blackadder" feature-length special "" (1999) introduced descendant character Archdeacon Darling, on better terms with the contemporary Blackadder. The time travel narrative of the special also allowed writers to introduce more historical Darlings to the series' chronology: the Duke of Darling, aide to the Duke of Wellington (Fry), and the Duc de Darling, assistant to Napoleon I (Simon Russell Beale). The final Darling, however, is also a Blackadder and was portrayed by Atkinson in BBC promotional materials in 2002; the name Sir Osmond Darling-Blackadder suggests an unknown familial union between Blackadders and Darlings at some point in their histories.