An estimated 50,000 people marched from the BBC’s New Broadcasting House in central London to Westminster.
“The people of this building [the House of Commons] generally speaking do not represent us, they represent their friends in big business. It’s time for us to take back our power,” said Brand.
“This will be a peaceful, effortless, joyful revolution and I’m very grateful to be involved in the People’s Assembly.”
“Power isn’t there, it is here, within us,” he added. “The revolution that’s required isn’t a revolution of radical ideas, but the implementation of ideas we already have.”
A spokesman for the People’s Assembly, which organised the march, said the turnout was “testament to the level of anger there is at the moment”.