Let's kick things off back in March, when Cassandra Clare officially announced the TV show!
Dominic Sherwood was absolutely ecstatic over getting the opportunity to play Jace Wayland.
Alberto had already been decked out with Simon glasses!
Alberto Rosende is so excited to play Simon! Hit play for an exclusive video message from Alberto just for you!v pic.twitter.com/DexyO87655— Shadowhunters (@ShadowhuntersTV) May 1, 2015
Emeraude was super excited, and could hardly contain herself.
And then the one everyone had been waiting for...
Matthew Daddario could hardly believe it when he got the part of Alec Lightwood!
Isaiah Mustafa was absolutely over the moon when he found out he got the role of Luke Garroway.
What an incredible cast huh? Tell us your initial thoughts on casting and how much you love them now in the comments below!