The HBO hit series Game of Thrones is having a baby boom as the actors who protrayed The Mountain, Sansa Stark and Jon Snow and Ygritte all welcomed babies recently or are expecting a child.

Iceland’s Hafthor Julius Björnsson, who played  Sir Gregor Clegane, “The Mountain,”  announced Sunday that his wife Kelsey Henson welcomed a baby boy.

“After an extremely hard 2 hours and 19 mins of pushing our healthy, strong, beautiful boy arrived,” he captioned a series of photos of himself, his wife and newborn on Instagram, sharing that the baby weighed over 7 pounds.

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26.09.2020 . 6am Kelsey woke me up telling me she had been losing her water, I immediately jumped out of bed and said alright let’s go, she stayed calm and replied with a laugh and said, no we are not going yet. I then asked to call our midwives to which she replied again no let’s just wait for awhile. . 7:15am we call our friend to come photograph the labour, the midwife and doula. Once the midwife arrived she checked out the progress and we were surprised to learn Kelsey was already 5cm dilated. The midwife asked if she was ready to go to the birthing centre or wanted to try out that bath at home and Kelsey, still remaining calm, decided to try the bath at home. While I was filling up the bath things started escalating quickly, the contractions were much stronger lasting over a minute and were anywhere from 2-3 min apart. The midwife then said she thought we should head to the clinic and finally Kelsey agreed it was time. . 8:40am. We arrived at the Björkin, the birthing centre, after a quick 10 min drive. Right away Kelsey knew exactly what she wanted and asked how long until the birthing pool would be filled. The next fifteen minutes Kelsey paced around between contractions waiting for the tub to be filled. . 9:00am She was in the tub and immediately started to push. Things escalated super quickly. Throughout it all she did amazing. She was in complete control of her mind and body. She had strong opinions on exactly what she wanted and where she wanted to be. I am completely in awe of how strong she is, and so proud of her for everything she did to prepare herself throughout her pregnancy. It cannot be put into words how proud I am and how I feel about this experience. . 11:19am After an extremely hard 2 hours and 19 mins of pushing our healthy, strong, beautiful boy arrived weighing 3530 grams, 52 cm long. . To finish the most beautiful, awe inspiring labour was the most wonderful phone call to my daughter to introduce her to her new little brother ❤️ . 5:30pm We arrive back at home both mom and baby doing super well and spent our first night as three together. . We have decided on a name and cannot wait to share it with you all soon.

A post shared by Hafþór Júlíus Björnsson (@thorbjornsson) on Sep 27, 2020 at 2:38pm PDT

Henson wrote on her Instagram account, “Our beautiful baby boy made his grand entrance into the world at 11:19 AM on September 26th 2020 after a short and intense six hours.”

“The birth was the most powerful, life-changing, empowering thing I’ve ever done in my entire life. We are all doing well and settling in at home as three!”

His co-star Sophie Turner welcomed her own first child, daugther Willa, who she shares with husband Joe Jonas, in July and this weekend, the private star shared a few throwback maternity photos ofher baby bump.

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A post shared by Sophie Turner (@sophiet) on Sep 27, 2020 at 1:16pm PDT

And just this week, it was revealed that another extremely private pair of stars, the also married Rose Leslie who playe Ygritte and her co-star and husbaqnbd Kit Harrington are expecting their first child.

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So wonderful working with the beautiful Rose Leslie for the cover story of @make_magazineuk out now! A very special all woman team photographic shoot capturing Rose at this wonderful time as she prepares for motherhood for the first time! My team were: @billiescheepersphotography @liztaw doing beautiful hair and @justinejenkins wonderful makeup. Rose wears @stellamccartney. Huge thanks to @vrwpublicity for organising the shoot and to Hannah Rand for her interview. #roseleslie #makemagazine #rose #portraitphotography #portrait #interview #covershoot #cover #stellamccartney

A post shared by Ursula Lake (@ursula_lake) on Sep 26, 2020 at 8:38am PDT

The couple met on the show and married in 2018. An editor for a Brit magazine shared that news in an Instagram post which featured Leslie in a black and white photo with her growing baby bump showing.

Congrats to all!