Homeland star David Harewood insisted that "there can be enough food for everyone". Speaking at today's rally he added:
"We've already changed the diaries of the G8 leaders, we've already changed their agenda. Now we just need to remind them they need to change the world. That's why we need all of you to speak up today."
More top news
The England cricketer will miss Wednesday's One-Day International against the West Indies after he was arrested in Bristol on Monday.
The TV star, known for his role in the 1960s sitcom, was also the father of Cherie Blair.
Former Labour Deputy PM who oversaw an explosion in the contracts now says they are "crucifying" the health system.