Matthew Daddario Alec Lightwood Actor Katherine McNamara Clary Fray Actor Isaiah Mustafa Luke Garroway Actor Alberto Rosende Simon Lewis Actor Dominic Sherwood Jace Wayland Actor Harry Shum Jr. Magnus Bane Actor Emeraude Toubia Isabelle Lightwood Actor Will Tudor Jonathan Morgenstern, Sebastian Verlac Guest Star Alisha Wainwright Maia Guest Star Vanessa Matsui Dorothea "Dot" Rollins Guest Star Lisa Berry Cleophas Garroway Guest Star Alan Van Sprang Valentine Morgenstern Guest Star Jack Fulton Max Lightwood Guest Star Elias Toufexis Jonathan Guest Star Zach Smadu Elliot Guest Star McG Executive Producer Todd Slavkin Executive Producer Darren Swimmer Executive Producer Michael Reisz Executive Producer Matthew Hastings Executive Producer Mary Viola Executive Producer Martin Moszkowicz Executive Producer Robert Kulzer Executive Producer