Guest Stars Adjoa Andoh as Pathologist Lilly Adelayo Adedayo as Kayla Nicholas Blane as Pathologist Oswald Spear Colin Salmon as Doug Greer Michael Culkin as Justice Lockwood Jing Lusi as Gabby Pippa Bennett-Warner as Zana Washington Fady Elsayed as Jamal Tony Gardner as Commander Douglas Stone Michael Byers as Robert Page Shereen Gray as Shonda Washington Cliff Barry as Albert Carlow Mark Bagnall as Thomas King Raffaello Degruttola as Niccolo Joss Porter as Rodin Natasha Sparkes as Carla Leo Gregory as Warren Lennox Kasey McKellar as Bobbi Washington Liam Sargeant as Jack Carlow Nisha Nayar as Namita Cresswell Uncredited Robert Glenister voices Opening Narration