See How the 'Blue Bloods' Cast Has Changed Since Their First Seasons (PHOTOS)

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Blue Bloods Frank S1 S10
Craig Blankenhorn/CBS; Patrick Harbron/CBS
Brothers
Craig Blankenhorn/CBS

Tom Selleck as Frank Reagan in Season 1

Naughty or Nice
Patrick Harbron/CBS

Tom Selleck as Frank Reagan in Season 10

BLUE BLOODS
Craig Blankenhorn/CBS

Donnie Wahlberg as Danny Reagan in Season 1

Glass Houses
Patrick Harbron/CBS

Donnie Wahlberg as Danny Reagan in Season 10

Brothers
Craig Blankenhorn/CBS

Bridget Moynahan as Erin Reagan in Season 1

Naughty or Nice
Patrick Harbron/CBS

Bridget Moynahan as Erin Reagan in Season 10

BLUE BLOODS
John Paul Filo/CBS

Will Estes as Jamie Reagan in Season 1

Another Look
John Paul Filo/CBS

Will Estes as Jamie Reagan in Season 10

Pressexpress
Heather Wines/CBS

Len Cariou as Henry Reagan in Season 1

Blue Bloods Henry S10
CBS

Len Cariou as Henry Reagan in Season 10

pressexpress
Jojo Whilden/CBS

Sami Gayle as Nicky Reagan-Boyle in Season 1

Blue Bloods Nicky S10
CBS

Sami Gayle as Nicky Reagan-Boyle in Season 10

Blue Bloods S3 Maria
Craig Blankenhorn/CBS

Marisa Ramirez as Maria Baez in Season 3

The Real Deal
John Paul Filo/CBS

Marisa Ramirez as Maria Baez in Season 10

Lost and Found
CBS

Vanessa Ray as Eddie Janko in Season 4

Behind the Smile
Patrick Harbron/CBS

Vanessa Ray as Eddie Janko in Season 10

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Now that Blue Bloods is heading into its 11th season, why not take a look back at the beginning?

For the most part, the main cast has remained unaltered. Tom Selleck (Frank), Donnie Wahlberg (Danny), Bridget Moynahan (Erin), Will Estes (Jamie), and Len Cariou (Henry) were all in the series premiere, and Sami Gayle (Nicky) first appeared a few episodes later. But they have lost a couple key members from the beginning, including Amy Carlson (Linda) and Jennifer Esposito (Jackie), and gained a couple, including Marisa Ramirez (Baez) late in Season 3 and Vanessa Ray (Eddie) in Season 4.

11 Most Memorable 'Blue Bloods' Guest Stars (PHOTOS)See Also

11 Most Memorable 'Blue Bloods' Guest Stars (PHOTOS)

In honor of two returning actors in the 200th episode, we look back at some notable recurring characters.

And it's the majority of that cast that attends Sunday dinner. Wahlberg will always remember the first one. "It was sort of traumatizing for me to sit there and have to come in on my first day of shooting the series and just basically take over the dinner table," he told TV Insider.

"But I knew if I didn't do it successfully, the show wouldn't have a chance to thrive. We had to be able to speak our own voices and stand up for our characters' points of views on the show or it wouldn't work," he continued. "[After, Selleck] gave me the biggest smile and pat on the back after and said that's what's going to make this show magic."

Breaking Bread With the Reagans: Inside the 'Blue Bloods' Sunday DinnersSee Also

Breaking Bread With the Reagans: Inside the 'Blue Bloods' Sunday Dinners

'The Reagans are close, and so are we,' says Tom Selleck, as he and the cast give behind-the-scenes secrets about the weekly meal.

Click through the gallery above to see the cast in their first seasons and the latest.

Blue Bloods, Season 11, Fall 2020, CBS