Boston Blue‘s newest episode took an emotional turn when a main character revealed a past suicide attempt.
During the Friday, November 13, episode of the CBS series, Sean Reagan (Mika Amonsen) and Jonah Silver (Marcus Scribner) searched for a fellow officer, whom they believed was a risk to himself. They were able to talk him down after Sean revealed his own mental health challenges. He specifically recalled struggling with suicidal ideation after his mother’s death and how a past attempt had pushed him to address his issues.
Before Boston Blue, Sean’s journey was featured on Blue Bloods, which ran from 2010 to 2024. The spinoff, which premiered in October 2025, kicked off with Danny (Donnie Wahlberg) visiting Boston after Sean ended up in a coma. This version of Sean looked a little different, as Andrew Terraciano previously played the role.
“There’s been some negativity [from viewers], for sure,” Amonsen exclusively told Us in November 2025 about taking over the part. “But when I look under those posts that have the negativity, there’s a lot of fans rallying for Sean and people saying that they really enjoyed this character that I’ve created — or my version of character.”
Amonsen noted that he wanted to make Blue Bloods fans happy with his performance, saying, “They’re really enjoying the show, and they love where it’s going in terms of Sean, and that makes me happy.”
The actor recalled feeling “a ton of pressure” over the situation.
“I felt the pressure to respect an actor before me because I wanted to respect Andrew the best I could. There were even certain visual choices that I made that I wanted to keep in terms of hair styling and certain ways of being [as Sean],” he continued. “I really want to maintain Sean as close as I can in the ways that I do it out of respect for this character that everyone loves — but also the character Andrew built.”
He continued: “When I booked the show, it all happened really quickly. It was within about a week’s time, and I was really thrown into it quickly. I did binge-watch as much as I could, and I found doing the later seasons was more helpful. I wanted to get a sense of who Sean was toward the end of the show. I really wanted to get a sense of his character at that point into adulthood and his relationship with Danny.”
Terraciano, meanwhile, broke his silence to Us about the shakeup.
“I had somebody call me — actually the day that I was graduating — and they had spoken to my mom, and she called me [crying]. They were like, ‘They might be looking for a different Sean,’” Terraciano shared with Us in December about the onscreen change. “Shortly after we got the news, Donnie called me. It was a really beautiful moment of getting to hear from an old friend but also somebody that you respect so much and have learned so much from.”
Terraciano expressed gratitude for his time on Blue Bloods.
“It’s beautiful because you’ll always remember every single line and every day that you had the opportunity to be that character,” he shared. “It doesn’t mean for even a second that somebody else can’t go and do something beautiful with it.”
Terraciano continued: “I got the joy of playing Sean, and I got to send him off into the world. Now somebody else gets that joy. We’re both getting to show what we do and then send Sean off into the world.”
Boston Blue airs on CBS Fridays at 10 p.m. ET.
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