Saga is paired with Martin Rohde (Kim Bodnia) in the first two seasons, a Danish detective who is warm, chaotic, and unfaithful to his wife. Their chemistry is the engine of the show. The friction between Saga’s rigid logic and Martin’s emotional messiness creates both tension and humor. When the cast changes in later seasons (Thure Lindhardt as Henrik Sabroe), the show successfully reinvents this dynamic without losing its quality.