Yes, there are many people born in Egypt who have become famous in the United States as well. Omar Sharif, Ahmed Ahmed (from "Iron Man"), Amr Awadallah (founder of Cloudera), Sam Khalifa (famous Major League player), Kareem Salama (country music singer) and Ahmed Zewail (Nobel-winning chemist) are just some of them.
Egypt is famous because of all the famous art work, famous buildings and types of landmarks. Egypt is famous because of the pyramids that seem to surpass human ability to build them at that point in time. They also developed a very early writing and communication system, and is also well known for it's mummies and the dead Pharaoh's.