Place wonton wrappers on a non-stick baking sheet. Brush with melted butter. Bake until golden and crisp, about 7-8 minutes. Let cool and set aside.
To make dip, preheat oven to 425°F. Lightly coat a 9-inch baking dish with non-stick spray. Set aside.
In a large bowl, beat cream cheese, mayonnaise, and sour cream until light and fluffy. Stir in crab, ½ cup white cheddar cheese, parmesan, green onions, Worcestershire sauce, soy sauce, sesame oil, garlic powder, and salt and pepper to taste.
Spread crab mixture into prepared dish. Top with remaining white cheddar cheese. Bake until bubbly and golden, about 25 minutes.