While there are plenty of celebrity families in Hollywood, some of the best star "twins" are the honorary ones — aka look-alikes. If you've ever done a double take while looking at Katy Perry and Zooey Deschanel, Jeffrey Dean Morgan and Javier Bardem, or Amy Adams and Isla Fisher, we've got the ultimate treat for you. Keep reading to see 22 of the most mind-boggling look-alike sets who could totally pass as siblings in real life! Source: Getty 1 Amber Heard and Scarlett Johansson Source: Getty / David Livingston; Getty / Rindoff Petroff 2 Helen Hunt and Leelee Sobieski Source: Getty / Michael Tran, D. Dipasupil 3 Javier Bardem and Jeffrey Dean Morgan Source: Getty / Mike Marsland; Getty / Jesse Grant 4 Nina Dobrev and Victoria Justice Source: Getty / Axelle; Getty / Christopher Polk googletag.cmd.push(function() {googletag.display("gallery_interstitial-0");});5 Minka Kelly and Leighton Meester 6 Beth Behrs and Erin Andrews Source: Getty / Alberto E. Rodrigu