Popsugar Celebrity Alexandra Daddario Are Zac Efron and Alexandra Daddario Dating? Zac Efron and Alexandra Daddario "Aren't Officially Dating," but These Photos May Prove Otherwise 6 April 2018 by Monica Sisavat Solís First Published: 2 April 2018 View On One Page Photo 8 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Previous Next Start Slideshow Alexandra DaddarioCelebrity FactsCelebrity InstagramsCelebrity CouplesZac Efron