A video has emerged of British comedian and activist Russell Brand speaking to anti-capitalist protesters at a demonstration in central London, UK on Wednesday night.

The controversial star made a surprise appearance at the demonstration after attending a press night for the launch of Made In Dagenham at the Adelphi Theatre earlier in the evening.

Thousands of masked demonstrators descended on the streets around Westminster and Buckingham Palace in an organised protest called the ‘Million Mask March’.

Riot police were on stand-by amid threats from campaign group Anonymous that the demonstration would create a blockade throughout London.

A video has emerged of British comedian and activist Russell Brand speaking to anti-capitalist protesters at a demonstration in central London, UK on Wednesday night.

The controversial star made a surprise appearance at the demonstration after attending a press night for the launch of Made In Dagenham at the Adelphi Theatre earlier in the evening.

Thousands of masked demonstrators descended on the streets around Westminster and Buckingham Palace in an organised protest called the ‘Million Mask March’.

Riot police were on stand-by amid threats from campaign group Anonymous that the demonstration would create a blockade throughout London.