If it's not broken, don't fix it: That seems to be the creative mantra of this well-written and -acted "black-ish" prequel, which somewhat flew under the radar with viewers during its first season, despite critical praise. As we return to 1980s-era America for Season 2, watch for young Rainbow Johnson (Arica Himmel) and her siblings to continue searching for an identity in a world where many others see them as neither black nor white. Mark-Paul Gosselaar, Tika Sumpter and Gary Cole also return.