‘Blue Bloods’: How Erin Reagan Actress Bridget Moynahan Prepared for Her Role

by Matthew Wilson

Audiences know Bridget Moynahan for her long-running role on the series “Blue Bloods.” Moynahan has played an important role in the success of the series. She’s one of the Reagan clan that makes up the heart of the show. “Blue Bloods” thrives on the family dynamic as much as the police procedural.

So how did Moynahan prepare for Assistant District Attorney Erin Reagan? Well in a 2014 interview with the Aquarian, Moynahan discussed how she prepared for the role. Part of it was studying real-life attorneys so she could portray the proper body language.

“We do have a couple of people we rely on to ensure that it’s as credible as possible. We’ve had two on set over the years that I’m able to consult/speak to about how a situation might be handled because we do want to make the show as honest and as accurate as possible. We do our best and I work with them often. For me, a lot of it is learning the language of lawyers, because they have many words I would not use in my everyday life,” she told the outlet.

Bridget Moynahan Almost Ditched ‘Blue Bloods’

Of course, no amount of preparation would have helped if Moynahan didn’t take the part. The star considered not joining “Blue Bloods” initially. And it had everything to do with the geographical location. Moynahan feared the show might film in Canada. And she didn’t want to live in the Great White North for an extended period of time.

Fortunately, her co-star Donnie Wahlberg convinced her to take the series. He had called her up about the part because the two had become friends.

“She was worried it was going to shoot in Canada, and she had a young child and didn’t want to have to commute,” Wahlberg told CBS in 2019. “I said, ‘I guarantee you, we won’t go to Canada … because Tom Selleck is never going to do a show in Canada. Knowing him, he will fight to do it in New York, because he wants it to be authentic.’”

Of course, Wahlberg ended up being right about Selleck. Tom Selleck took the part as Frank Reagan on the show. And authenticity was everything to the actor. With Selleck, “Blue Bloods” had a leading man. And it also had its district attorney as well. Wahlberg opened up about their friendship, which extends both on and off the screen.

“She and I started out as friends coming out of tough relationships, as single parents,” Wahlberg said. “And became friends and confidants and watched each other go through other relationships and then ultimately find spouses. Bridget and I have gone through this parallel journey as friends and have been there for each other.”