Katherine McNamara has been cast as heroine Clary Fray in ABC Family’s Shadowhunters, an adaptation of Cassandra Clare’s YA series The Mortal Instruments, EW has confirmed.

The story follows 18-year-old Clary, who discovers that she comes from a long line of supernaturally powered folks known as Shadowhunters—bringing her into a world filled with fairies, werewolves, vampires, and warlocks.

The network previously announced cast members Dominic Sherwood (Vampire Academy), Alberto Rosende (Blue Bloods), and newcomer Emeraude Toubia. McG, who will executive produce the series alongside Ed Decter, told EW he plans to “honor the fans.”