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 Sebastian Verlac Guest Star David Castro Raphael Santiago Guest Star Alexandra Ordolis Olivia "Ollie" Wilson Guest Star Shannon Kook Duncan Guest Star Alan Van Sprang Valentine Morgenstern Guest Star Chad Connell Quinn Guest Star Eileen Li Aline Penhallow Guest Star Andreas Apergis Consul Malachi 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