Danny Reagan

Danny Reagan
Blue Bloods and Boston Blue character
Danny Reagan (Donnie Wahlberg)
First appearanceBlue Bloods: "Pilot"
September 24, 2010
Boston Blue: "Pilot"
October 17, 2025
Last appearanceBlue Bloods: "End of Tour"
December 13, 2024
Created byRobin Green
Mitchell Burgess
Portrayed byDonnie Wahlberg
In-universe information
Full nameDaniel Fitzgerald Reagan
GenderMale
OccupationPolice officer
FamilyFrancis Xavier "Frank" Reagan (father)
Mary Margaret Reagan (mother)†
Erin Reagan (younger sister)
Joseph Conor "Joe" Reagan (younger brother)†
Jameson "Jamie" Reagan (younger brother)
SpouseLinda Rose Reagan (née O'Shea) (wife)†
Significant otherMarianne Romano (ex-girlfriend)
Maria Baez (girlfriend)
ChildrenJack Reagan
Sean Reagan
RelativesHenry Reagan (grandfather)
Nicky Reagan-Boyle (niece)
Joe Hill (nephew)
Police career
Department
Years of service
  • 1995 – 2025 (NYPD)
  • 2025 – present (Boston PD)
RankDetective 1st Grade
AwardsNYPD Medal for Valor

Daniel Fitzgerald "Danny" Reagan is a fictional Boston (formerly New York City) police detective, and one of the protagonists in the television franchise Blue Bloods and its spinoff series Boston Blue. Introduced in the first episode in 2010, he has been portrayed by actor and New Kids on the Block singer Donnie Wahlberg for the entire run of the franchise.