Donnie Wahlberg and Bridget Moynahan have been playing siblings Danny and Erin Reagan on “Blue Bloods” for 12 seasons now. Danny and Erin’s jobs often find them at odds leading to many tense conversations, so how does that affect Wahlberg and Moynahan’s real-life interactions?

During a 2019 interview, Bridget Moynahan talked about how the Blue Bloods cast is like family in real life, and that everyone has grown with each other over the past ten years. Wahlberg echoed that sentiment in another interview adding that Moynahan is “like my sister and my confidante, and we're very close friends."

So, it seems that the actors on "Blue Bloods" have had no problem portraying a family on-screen because they have become one in real life. In fact, Wahlberg convinced Moynahan to take the part in “Blue Bloods,” even though she initially passed.