Which actor from The Young Ones also played Lord Flashheart in one episode of Blackadder II?

The actor from "The Young Ones" who also played Lord Flashheart in one episode of "Blackadder II" is Rik Mayall. Mayall was known for his energetic and unpredictable performances, which made him a perfect fit for both the anarchic comedy of "The Young Ones" and the flamboyant character of Lord Flashheart in "Blackadder II". Playing both roles showcased Mayall's versatility and comedic talent, solidifying his status as a beloved and iconic figure in British comedy.