Season 5's Fabio Vivani hosts this exclusive dinner where some of past seasons' most familiar faces let it all out on the table. What will happen when old rivals like Ilan and Marcel confront each other? And what was the real story behind Casey's role in Carla's failed dishes in the Season 5 finale? "Top Chef All Star Dinner" airs Wednesday, Nov. 4, at 10 p.m. ET/PT on Bravo.