A devout Catholic, who attended daily mass, Egan didn't marry until he was well into his 30's, an advanced age for the time. He believed marriage was a lifetime commitment and was waiting for the right woman to come along.
Dated Susan Hayward before he married Patricia Hardy.
Father of Rich Egan; who started and runs Vagrant Records (a successful independent rock label).
Father of writer/director Maureen Egan.
Godfather of Tisha Sterling.
His only brother, Willis Egan, was a Jesuit and scholar.
Well known for being a gracious actor, and a favorite among stuntmen. He was deemed an "Honorary Stuntman" by the Stuntmen's Association of America.