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Mary McCormack Welcomes Daughter Lillian

09/11/2011 at 05:00 PM ET
Craig Barritt/WireImage

This U.S. marshal now has her own posse.

Mary McCormack, who hunts down witnesses on In Plain Sight, delivered her third daughter, Lillian McCormack Morris, on Saturday morning, Sept. 10, her rep confirms to PEOPLE.

Lillian weighed in at 6 lbs., 15 oz. and is 20 inches long.

The actress, 42, and husband Michael Morris‘s new arrival joins big sisters Rose, 4, and Margaret, 7.

McCormack — who gave PEOPLE a tour of her trailer on-set — had her pregnancy written into the storyline of her character Marshal Mary Shannon.

– Julie Jordan

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Showing 24 comments

jp on

congrats!

Taylor on

Congrats Mary, Michael, Margaret, and Rose! I’m sure this baby has a classy name just like her sisters!

klutzy_girl on

Congratulations to her! I was waiting for this ever since I saw the Tweet yesterday that Baby Girl #3 had arrived. Figured it’d be a girl. Can’t wait to hear the baby’s name!

Erika on

Oooh congratulations to her and her family! 3 girls is my dream family :)

SY on

Love her birthday, 9-10-11!

twinhappy on

Congrats to her and her family!

annachestnut on

nice

Melissa on

Congrats!! I can’t wait to see what happens with Mary’s baby on In Plain Sight.

Bancie1031 on

Congratulations

Mia on

Love her!! She has the best stories about her girls especially Rose who is now the middle child. Best of luck with the newest addition.

JMO on

oh wow another girl!! I wonder if she’ll be sweet like Margaret or evil like Rose lol (her words not mine)!!

Funny though how she can talk like this about her kids and it’s funny but Julie Bowen talks about her kids the same way and people find it wrong and distasteful. I find both these ladies and their stories about their kids quite humorous!!

Siera on

@JMO. Me too. I love Mary McCormack, and the way she talks about her children on talk shows and interviews like Chelsea Handler and Ellen is hilarious. :)

Harley on

Aw yay! I was so looking forward to the birth of this munchkin :) Congratulations to the entire brood!

Heather on

I still remember and love her as Kate Harper on The West Wing. She is one of my all-time favorite actresses. I am presicting she will stay with something traditional like (maybe) Kate/Katherine or I have a strong feeling for Alice.

Terri on

Her daughter’s have such sweet, traditional names. Can’t wait to hear the latest addition’s name. Congratulations to the family! Three girls is so sweet.

lk on

I thought she risked getting pregnant while on a hit show bc she/her husb wanted a boy. She had a girl which is a blessing.

BUt her show got cancelled.

Bacnk into obscurity for Mary.
This show brought her much attn and a great paycheck.
Ah well.

auroramia on

oooo…I love Lillian! My grandmothers name. I love the names she has chosen for her family.

soph on

Lillian, Rose, and Margaret, really pretty!

Siera on

@lk, In Plain Sight got cancelled? I thought it was coming back this spring?

tessa on

such a classy name!!! Congrats :)

Kat on

Lovely name. I like when parent stick with a style with their children’s names (classic, trendy, unusual), and her daughters’ names sound so pretty together.

georgiebrown74 on

That is so wonderful. Congrats to the entire family:~)

Amy on

I like how her girls have traditional names. That’s lovely.

Jen on

Rosie, Maggie and Lily, I love it! Nice names mom.

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