Melt butter in a skillet; add cracker crumbs, and cook, stirring constantly, until lightly browned.
Drain oysters, reserving 1/2 cup liquid. Place half of crumbs in a lightly greased 2-quart baking dish; add oysters. Sprinkle with salt, pepper, parsley, and remaining cracker crumbs.
Combine reserved oyster liquid and half-and-half; pour over cracker crumbs. Sprinkle with paprika.
Bake at 350° for 35 to 40 minutes.