John Simm Jack Whelan Actor James Frain Richard Shepherd Actor Millie Bobby Brown Madison O'Donnell Actor Tory Kittles Gary Fischer Actor Mira Sorvino Amy Whelan Actor Robert Forster Frank Shepherd Guest Star Alex Diakun Marcus Fox Guest Star Kathryn Dobbs Fern Guest Star Cameron Grierson Middle Aged Man Guest Star Patti Kim Detective Guest Star Sonya Salomaa Allison O'Donnell Guest Star Daryl Shuttleworth Detective Ron Blanchard Guest Star Shanae Tomasevich Paige Crane Guest Star Jonathon Young Larry Owens Guest Star Jane Tranter Executive Producer Julie Gardner Executive Producer Glen Morgan Executive Producer Rose Lam Executive Producer