Jim Axelrod on important people who wait in the wings; singer Barry Manilow; efforts to free the hostages in the Israel-Hamas war; the story of activist Bayard Rustin; the deaths of actors Matthew Perry (1969-2023), Richard Moll (1943-2023), and Richard Roundtree (1942-2023); Mexico's Day of the Dead; the life of bats; the lives of people born inter-sex