Blue Bloods fans have noticed that Tom Selleck’s character, Frank Reagan, shares similarities with President Theodore Roosevelt. Selleck modeled Frank after former NYPD Commissioner Bill Bratton. Fans appreciate the show’s portrayal of real police officers and note that Selleck is treated like a genuine police commissioner in public. Frank Reagan’s signature look and moments of leaving the office draw comparisons to Theodore Roosevelt, and Nicky once quoted Roosevelt in an episode, making her father proud. Despite the resemblance, Selleck has not played Roosevelt onscreen.