Shred cooked rotisserie chicken using forks. Set aside. Cook and dice the bacon. Set aside.
In a large mixing bowl, combine the cream cheese, sour cream, mayonnaise, cream of chicken soup, garlic powder, onion powder, bacon and chicken. Spread the mixture into a 9x13 casserole dish.
Sprinkle the grated cheddar cheese evenly over the chicken mixture.
Place the Ritz crackers into a large freezer bag and crush them, using a rolling pin or a heavy measuring cup. Melt the butter in a microwave safe bowl. Stir in the cracker crumbs until coated.
Sprinkle the bread crumbs evenly over the chicken and cheese. Bake for 35 minutes.