It's very tempting to choose the Master preferably played by Roger Delgardo, or maybe in his brief but memorable incarnation as Derek Jacobi. I could stick with my current Gerry Anderson theme and pick the Hood or Captain Black. There's also another memorable character but they are in the running for another category.
So as ever I have looked at the long list of shows we have covered for British Invaders and one villainous character stuck out. It's a very theatrical performance in a sumptuous BBC production of a cult book (actually two books). He's a creepy, master manipulator who climbs up the social ladder "faster than Ivy".
Jonathan Rhys Meyers as Steerpike in the BBC Gormenghast is my favourite villain at the moment.