During the past couple of years, Jerry had practically become his younger alter ego.
Equally Odette and her alter ego Odile attract the prince less through their enchanted beauty than through their artlessness.
He was not much closer to Belafonte, whose alter ego he played in the show.
Margara seems very much the alter ego of her creator.
1 somebody’s alter ego an invented person that you use to represent part of your character that is very different from your usual one: Gissing used his fictional alter ego to attack Victorian morals.2someone you trust and who has similar opinions, attitudes etc: Mrs Reagan was widely regarded as the president’s alter ego.