Q1: Why isn't Malek listed as Egyptian American in the lead paragraph?
A1: According to Wikipedia's Manual of Style:
Ethnicity, religion, or sexuality should generally not be in the lead unless it is relevant to the subject's notability. Similarly, previous nationalities or the place of birth should not be mentioned in the lead unless they are relevant to the subject's notability.There is no evidence that Malek is a citizen of Egypt and he is famous for being an actor, regardless of his ethnicity. His ethnic identity is discussed in the article.