Popsugar Celebrity Emma Watson Celebrities With Their Siblings | Pictures 80+ Celebrity Siblings, From the Hemsworths to the Cyruses October 23, 2023 by Britt Stephens View On One Page Photo 56 of 88 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 56 Zac and Dylan Efron Zac Efron has a younger brother named Dylan, who he often brings to award shows and NBA games. Previous Next Start Slideshow Emma WatsonZac EfronNicole RichieGwyneth PaltrowCelebrity Facts