Rosie O’Donnell’s father, Edward Joseph O’Donnell, has died of cancer, PEOPLE has learned. He was 81.
The actress’s father immigrated to the U.S. from Ireland, and worked as an electrical engineer in Comack, Long Island, during her youth. He worked as an aerospace electrical engineer for Fairchild, Schlumberger and Grumman. O’Donnell had five children.