The inaugural season of CBS’s Boston Blue—the highly anticipated spin-off of Blue Bloods—is proving it’s not afraid to bring major talent into the mix. After establishing a strong foundation with returning star Donnie Wahlberg (Detective Danny Reagan) and new lead Sonequa Martin-Green (Detective Lena Silver), the series is now strengthening its younger lineup with a high-profile addition.
The show has officially cast Xochitl Gomez—best known as America Chavez in Marvel’s Doctor Strange in the Multiverse of Madness and the Season 32 champion of Dancing With the Stars—in a recurring role for Season 1. Gomez will play Penny, described as a “quick-witted, charming young woman with a mysterious past” who unexpectedly enters the life of Sean Reagan (Mika Amonsen), Danny’s son and a new Boston PD patrol officer.
Penny’s introduction signals a major investment in Sean’s arc, bringing intergenerational storytelling back into focus—just as Blue Bloods did during its 14-season run. Gomez is set to debut in Episode 6, titled “Code of Ethics,” airing November 21. But early details make one thing clear: this won’t be an ordinary young romance.
The Role and the Stakes
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Character: Penny—sharp, charming, and harboring secrets.
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Connection to Sean: She “crashes into his life,” hinting at an immediate personal impact.
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Conflict: The episode logline reveals that Sean’s “budding romance faces unexpected complications.”
With Penny’s mysterious past looming, the stakes are high. Her history could intersect with Danny and Lena’s cases, tie into a victim, or even complicate an investigation. Whatever the reveal, it promises to challenge Sean’s idealism—and force him into the same moral gray areas his father confronted for years.
This storyline is significant for another reason: it gives the newly recast Sean Reagan a trajectory that stands on its own, allowing Mika Amonsen to establish Sean as a compelling lead in the next generation of the Reagan legacy.
From Multiverse Hero to Police Drama
Casting Gomez is a major win for the series:
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MCU Popularity: Her breakout role as America Chavez earned her worldwide recognition and a dedicated fanbase—many of whom will follow her to Boston Blue.
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DWTS Spotlight: Her recent victory on Dancing With the Stars expanded her mainstream appeal and showcased her charisma.
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Boosting the Ensemble: Bringing in a rising star adds energy, youth, and broad audience reach. It also signals that the storylines of Sean and Jonah Silver (Marcus Scribner) will carry just as much emotional and dramatic weight as the cases led by Danny and Lena.
With Gomez on board, Boston Blue is doubling down on character-driven storytelling, generational conflict, and high-stakes family drama—firmly planting its own identity while honoring the legacy fans loved.