TV chef Warner and Contaldo from the BBC’s Two Hungry Italians were added to the bill for the festival, which will be held from 1-2 September at ex-Blur bassist Alex James's farm in Oxfordshire.
Producers and suppliers were also added to the line-up, including 1940s inspired travelling tea room Tea Vintage and organic meat producer Well Hung Meat which will bring its Well Hung burger van to the festival.
The Big Feastival is organised by Brand Events and will raise money for The Jamie Oliver Foundation.
As reported by Event, Brand Events had hoped to hold a Big Feastival at the London Live site in Victoria Park during the Olympics, but scrapped the plans after concerns about Locog's strict branding restrictions.
The first Big Feastival took place on Clapham Common last year, run by Rouge Events.
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