Preheat the oven to 375°F (190°C) and lightly grease a baking sheet.
In a mixing bowl, combine shredded chicken, softened cream cheese, shredded cheddar cheese, garlic powder, chopped parsley, salt, and pepper until smooth.
Open the can of crescent roll dough and unroll it on a clean surface.
Take a triangle of dough, place a spoonful of the chicken filling at the wider end, and roll it towards the pointed end, tucking in the sides.
Place the rolled crescent on the prepared baking sheet with the point facing down and repeat until all dough and filling are used.
Bake in the preheated oven for 12-15 minutes until golden brown and puffed up.
Let cool for a few minutes before serving.