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Nicole "Nicky" Reagan-Boyle is the only child of Erin Reagan and Jack Boyle. Nicky is a generally well-behaved and an intelligent girl who dresses, and typically behaves with more maturity than her classmates. She is being raised by her mother Erin, because her father did not want to share custody of her.

Nicky graduated from Columbia University, her mother's alma mater, at the end of season eight.


The second oldest of the Reagan grandchildren, similar to her mother, she is the only female grandchild. Nicky is a well behaved young woman, though there have been times where following her heart has led to her clashing with authority figures. While she resented being treated like a child longer than many of her classmates, she showed understanding that, as a Reagan, expectations of her were different.

Similar to the rest of the Reagan family, she attended Catholic schools, notably the Blessed Heart Academy for high school. Nicky considered college out of state until she considered the cost and distance of attending such a college. Nicky decided to attend Columbia University, partly because she had a friend who had an apartment close to campus, which she could share with the friend to save money.

In her early teens, Nicky announced she wanted to be the first female Reagan officer. From time to time she wavered on her conviction to follow her family in law enforcement, classifying herself as the bleeding heart hippie of the family. In The Brave, she decides to take the police exam.

In season six, Nicky is nineteen years old when Thomas Wilder kidnaps her.

In The Brave, Nicky tells Frank she is planning to take the police exam.



In season six, her relationship to an NYPD officer is revealed after her boyfriend is involved in an incident. It is revealed when Nicky's uncle Jamie and his partner arrive to a scene to offer assistance to other officers, for a suspect reported to be brandishing a machete.


To edit this gallery, go to Nicky Reagan-Boyle/Gallery.
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Notes & Trivia

  • Turns sixteen years old in Old Wounds, meaning she was born in the year of 1996.
  • Maintains a close relationship with her grandfather Frank Reagan, who is displayed to be more of a father to her than her own biological father.


Season One
Episode 1:
Episode 2:
Episode 3:
Episode 4:
"Officer Down"
Episode 5:
"What You See"
Episode 6:
"Smack Attack"
Episode 7:
Episode 8:
Episode 9:
Episode 10:
"After Hours"
Episode 11:
"Little Fish"
Episode 12:
"Family Ties"
Episode 13:
"Hall of Mirrors"
Episode 14:
"My Funny Valentine"
Episode 15:
Episode 16:
"Age of Innocence"
Episode 17:
"Silver Star"
Episode 18:
"To Tell the Truth"
Episode 19:
"Model Behavior"
Episode 20:
"All That Glitters"
Episode 21:
"Cellar Boy"
Episode 22:
"The Blue Templar"


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