Tina Mabry’s “The Supremes at Earl’s All-You-Can-Eat” has rounded out its cast with the addition of Kyanna Simone (“American Horror Stories”), Tati Gabrielle (“You”), Abigail Achiri (“The Underground Railroad”), Julian McMahon (“FBI: Most Wanted”, “Nip/Tuck”), Vondie Curtis-Hall (“Blue Bayou”) and Tony Winters (“National Champions”) as Big Earl. Uzo Aduba, Aunjanue…