Special Guest Stars Guillermo Diaz as Sgt. Bill Brewster Guest Stars Mike Cannon as Detective Carlos Maldonado Rachel Lin as Detective Victoria Cho Wesam Keesh as Adam "Malachi" Mintock Robin Lord Taylor as Sebastian McClane Elliot Villar as Teddy Garcia Clara Wong as Lena Chen Marc Menchaca as Brother Bill Lea Zawada as Ana Castro Michael Lewis as Wayne Andrew Durand as Donald Mathers Co Starring Jay Horton as Gareth McKenzie Shea as Naya - Aide #1 Alexander Martin Jones as Gunther Samuel Okine as Aide #2 Brad Calcaterra as Cale Rory Clarke as Technician Jacqueline O. Rene as ESU Jim E. Chandler as Officer Donovan Robert Keiley as Bomb Squad #1 Dean Elias as Loyalist #1 George Slotin as Incel Loyalist Janira Reyes as Rachel King Jonathan Auguste as Rookie Cop Alfred C. Kemp as Bomb Squad #2 Teéa Loreál as ESU Officer Rick Bolander as Security Guard Uncredited Steve Zirnkilton voices Opening Narration