and I thought all 8 were on the show previously.I just checked the Food Network Episode Listings.......
Neither Kaysen and Davie were on Iron Chef America.
Yahoo-fu tells me Kaysen was in the Bocuse D'Or, the World Cuisine Contest
By the looks of things from the other search, Jill Davie was put into this contest as part of the Food Network/Fine Living working agreement....... She's a co-host on Shopping With Chefs....