A Roman Catholic Chaplain is a clergy member who provides spiritual care, religious services, and pastoral support to individuals in institutions such as hospitals, the military, prisons, schools, or universities. They are ordained priests or, in some cases, deacons who have received specialized training to serve the unique needs of people in these settings. Their duties include celebrating Mass, administering sacraments, offering counseling, and supporting people of all faiths or none during times of crisis or need.