Tom Selleck, known for his roles in "Magnum PI" and "Blue Bloods," is drawn to character-driven shows like these. He values the development of the characters over the intricate plots. "Magnum PI" was especially notable for its realistic portrayal of Vietnam veterans, a departure from television norms at the time. Selleck, himself a veteran, fought for the positive representation of veterans on the show. Overall, Selleck's appreciation for character development is what attracted him to both "Magnum PI" and "Blue Bloods."