VIDEO: Katherine McNamara's Special Message for Cassandra Clare!

Cassandra Clare posted an adorable video on her personal Instagram account.

The video is of Kat McNamara sharing her excitement of being casted as Clarissa Fray in ABC Family's Shadowhunters.

Totally cute Kat McNamara @kitkatsmeow stops by to say hi to me (and yes her hair is red now)! and talk Clary!

A video posted by Cassie Clare (@cassieclare1) on May 13, 2015 at 4:06pm PDT

As Cassie mentioned in the caption, Kat returned to her ginger colored hair! Shadowhunters some of the photos of Kat going through the process. She definitely looks like Clary!

We <3 @Kat_McNamara's red hair!!! #Shadowhunters pic.twitter.com/X0rIzKV6Qo

— Shadowhunters (@ShadowhuntersTV) May 13, 2015

'Shadowhunters' Casting News: Kat McNamara is Clary Fray and Casting Recap

The hashtag that started it all ... #WhoIsJace

  Became, #WhoIsSimon and #WhoIsIzzy 

 Shadowhunters wanted to know who would be playing Jace's better half, and today that question was answered.

We know who is playing Jace, Simon & Isabelle. In ONE HOUR you will know who is playing Clary! #WhoIsClary pic.twitter.com/YQtALN3zRx

— Shadowhunters (@ShadowhuntersTV) May 6, 2015

Now, Shadowhunters world wide are celebrating as the following tweet answered the hashtag that has had fans of Cassandra Clare's The Mortal Instruments book series guessing over the last couple of days...

#WhoIsClary?

Shadowhunters, Jace now has his Clary. Please welcome Kat McNamara to the TMI Family!

It's official! @Kat_McNamara is going to play Clary Fray on #Shadowhunters! pic.twitter.com/LWECwPNnwR

— Shadowhunters (@ShadowhuntersTV) May 6, 2015

ABC Family announced that Kat McNamara will be Clary Fray in the Shadowhunters TV series that is coming soon. 

Check out this exclusive video of Kat thanking the fans for their support:

Here's an exclusive video from @Kat_McNamara just for you! #Shadowhunters pic.twitter.com/GHSwxfEAGH

— Shadowhunters (@ShadowhuntersTV) May 6, 2015

In a recap, ABC Family has casted Dominic Sherwood as Jace Wayland, Kat McNamara as Clary Fray, Alberto Rosende as Simon Lewis, and Emeraude Toubia as Isabelle Lightwood.

We could not be happier here at the institute! Comment below with your thoughts on the casting!