For 14 seasons, Donnie Wahlberg and Tom Selleck played father and son on Blue Bloods. Somewhere along the way, that relationship began to feel real off camera too.
Wahlberg played Detective Danny Reagan, while Selleck sat at the head of the Reagan family table as his father, New York City Police Commissioner Frank Reagan.
Their characters did not always agree. Neither did the actors. But according to Wahlberg, there was always a deep level of trust and respect between them.
Their Working Relationship Felt Like Danny and Frank
Wahlberg once described Selleck as a natural leader—experienced, intelligent and deeply committed to the show.
Both men cared about the same thing: making Blue Bloods as good as it could be. They sometimes had different ideas about how to get there, but Wahlberg learned when to speak up and when to trust Selleck’s judgment.
That sounds a lot like Danny and Frank Reagan themselves.
Danny was outspoken and quick to challenge his father. Frank was quieter, but he carried the kind of authority that did not require shouting. Their disagreements could become heated, yet the respect between them was always clear.
That same balance existed between the two actors.
The Reagan Dinner Table Felt Familiar to Wahlberg
Wahlberg grew up as one of nine children in Dorchester, Massachusetts. When he first read the Blue Bloods pilot, the Reagan family dinner immediately felt familiar to him.
He remembered sitting at his own family table while his father watched him argue with one of his sisters. When Wahlberg saw Selleck at the head of the Reagan table, he recognized that same quiet authority.
Those Sunday dinners eventually became the heart of the series.
The Reagans talked about police work, family problems and their different ideas about right and wrong. Frank rarely needed to raise his voice. His presence was usually enough.
The scenes also brought the cast together in real life. Selleck once said filming them felt like catching up with a real family, while Wahlberg later explained that the weekly dinners reminded the actors how fortunate they were to have one another.
“There’s a genuine affection when we get together for dinner scenes,” Wahlberg said while reflecting on the tradition in a 2024 interview about the show.
Image credit: Legion-Media
“I Call Him Dad Now”
Wahlberg’s mother, Alma, died in April 2021. During an emotional interview shortly afterward, he spoke about losing her, the gratitude she had taught him and the people he valued in his life.
The conversation eventually turned to Blue Bloods and his relationship with Selleck.
“I call him Dad now. He calls me Son. That’s how we talk to each other off camera.”
Wahlberg shared the admission in an interview with Entertainment Tonight.
He explained that Selleck was not quite sure what to make of him when they first began working together. Wahlberg was already known as a member of New Kids on the Block, and Selleck initially appeared a little puzzled by the energetic “music guy” joining his police drama.
Over time, that uncertainty disappeared.
Wahlberg said Selleck began greeting him as “son” and giving him big hugs whenever they met. That meant something to Wahlberg because Selleck was not known for being especially affectionate.
Getting a hug from Tom Selleck, he joked, was a big deal.
They Became a Real Family
By the final season, the father-and-son nicknames had become a normal part of their friendship.
In another interview, Wahlberg said Selleck would greet him by asking how he was doing and calling him “son.” He believed the cast had grown beyond being coworkers and had become a real family.
That made the end of Blue Bloods particularly difficult.
The series concluded on December 13, 2024, after 14 seasons and 293 episodes, according to CBS’s look back at the series finale.
For Wahlberg, saying goodbye meant much more than leaving another television job. He was leaving people who had been part of his life for nearly a decade and a half.
The Reagan family dinners may have been written for television, but the connection around that table was real.
Wahlberg did not simply spend 14 seasons playing Tom Selleck’s son. Somewhere during those years, the two men truly began to see each other as family.
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