Comedian Russell Brand and fashion designer Vivienne Westwood joined thousands of anti-capitalism protesters at Million Mask March here.

The masked demonstrators descended on Westminster for a Bonfire Night protest Wednesday, which was orchestrated to cause chaos throughout London, reports dailymail.co.uk.

Scores of riot police were on stand-by amid threats from campaign group Anonymous, that the demonstration would create a blockade in the city.

The protest saw activists wear masks depicting the sinister face of Guy Fawkes -- a mask made famous in the film `V for Vendetta`.

The protest was one of hundreds organised at the same time in cities around the world. Brand attended the same event last year too.