'NCIS' Star Eric Christian Olsen and Wife Sarah Welcome a Baby Girl! Find Out Her Very 'Twilight' Name

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Eric Christian Olsen and Sarah Wright are officially parents of two.

Congratulations are in order for Eric Christian Olsen and his wife, actress Sarah Wright!

The two welcomed their second child together -- a baby girl -- on Aug. 9, Wright shared on Instagram. The newest addition to their family joins their 2-year-old son, Wyatt.

"Love and joy don't do justice to what I feel when I look at these three," Wright wrote on Instagram alongside an adorable pic of her husband and their two children. "Esmé Olivia was born 8/9/16 at 8:55am she is 11 pounds of love. #littlebear #papabear #littlebitofperfect #yourzenmama."

WATCH: 'NCIS: LA' Star Eric Christian Olsen and Wife Sarah Wright Hunt for Homes on HGTV

Olsen praised his wife on Thursday. "Birth is like a whirlwind microcosm of the rest of the journey that is life and I am in awe of this woman; somehow navigating the most difficult moments with equal parts passion, fearlessness, and all encompassing love," he sweetly Instagrammed. "I suspect she may be magic."

The baby girl's unique name initially posed some interesting questions -- like, are the pair big fans of Twilight? (fans of the vampire saga will recall that Esme is the name of the Cullen family matriarch) -- though the name is actually derived from the J.D. Salinger short story For Esme -- With Love and Squalor.

ET caught up with Wright in June, when she talked about the interesting real-life dynamic between 39-year-old Olsen and his NCIS: Los Angeles co-star, 32-year-old Daniela Ruah. Ruah and Olsen play lovers on the CBS series, but in real life, they're in-laws. Ruah is married to Olsen's older brother, David, and coincidentally, both couples are already parents to little boys -- and Ruah announced in April that she's also pregnant with a baby girl!

WATCH: Eric Christian Olsen's Mom Reveals Embarrassing Secrets

"I think the person who has the most challenge from all of this is Eric, because he goes to work and he has to be with her and he comes home and he's with me," a then still-pregnant Wright joked to ET.

Watch below!