“Familiar” is the latest play by Macalester alumna Danai Gurira ’01, who is known for her roles in “Black Panther” and “The Walking Dead.” The play, which is currently showing at the Guthrie, is the tale of a Zimbabwean-American family’s struggle with personal trauma and cultural identity. Marvelous (Perri Gaffney) and Donald (Harvy Blanks) left…