The sea grew turbulent and the earth trembled when Michael the archangel came down from heaven.
-LOTH, Office of Readings.
This article highlights the true nature of the angels, not as whimsical characters portrayed in cartoons, but immensely powerful beings created by God to carry His message and assist us in our struggles. Scripture gives us no doubt to their awe inspiring appearence. Why else would they have say "Be not afraid" each time they apepar to someone?
Holy Angels and Archangels, ora pro nobis!
External: Messengers of God