Blackadder: Back & Forth finds it has actually worked. They are now in the Cretaceous Period, where they are attacked by a "Tyrannosaurus". They throw away their wager items but are eventually able to knock it out using the underpants. Blackadder comments that one of lifes mystery has been solved and that the dinosaurs were actually wiped out by Baldrick's underpants. Baldrick admits that, as he never got round to writing the dates on the dials, they cannot return to the present. Blackadder and Baldrick return to Blackadder Hall but during the reign of Queen Elizabeth I (Miranda Richardson) who, mistaking him for his
Blackadder the Third Robbie Coltrane), the French Revolution (featuring Chris Barrie) and the Scarlet Pimpernel, over-the-top theatrical actors, squirrel-hating female highwaymen, the practice of settling quarrels with a duel and discussing tactics with Duke of Wellington (played by Stephen Fry). The last episode of the series also features Rowan Atkinson in the role of Blackadder's Scottish cousin MacAdder, supposedly a fierce swordsman; this leads to a dialogue in which Atkinson is acting both parts. Following the aftermath of this episode, Blackadder finds fortune and ends up (permanently) posing as the Prince Regent after the real Prince Regent, disguised as Blackadder, is shot by