The Halo TV series cast has been rounded out as the ambitious video game adaptation looks to finally start production later this year. Pablo Schreiber (Orange Is the New Black) was previously set in the lead role of Master Chief, but today Showtime announced that Natascha McElhone (Californication) and Bokeem Woodbine (Fargo) are also set for lead roles in the show while Shabana Azmi (Fire), Bentley Kalu (Avengers: Age of Ultron), Natasha Culzac (The Witcher) and Kate Kennedy (Catastrophe) round out the ensemble. McElhone will be playing two characters in the Halo TV show: Dr. Catherine Halsey, the brilliant, conflicted …