The 45-year-old Grey's Anatomystar took to Instagram on Wednesday to announce that his wife, Arielle Goldrath, had given birth to their second child, a daughter named Nava.
"I’m so happy to announce the arrival of our little baboo - Nava James McKidd!" the actor gushed alongside a photo of the sleeping newborn lying on Goldrath's stomach. "She is amazing and our whole family feels blessed."
"We just got her home and Aiden is already a brilliant big brother to her," McKidd added of his 1-year-old son, before referencing his two older children, who he shares with his ex-wife, Jane Parker.
"Joe and Iona are the best guiding lights to these new souls," he wrote of his son and daughter, who are 19 and 17 respectively.
"Arielle is a WARRIOR and I’m so proud to witness her natural mothering strength and wisdom," he concluded of his wife, who he wed in 2018. "Full of love and gratitude #clanmckidd"
McKidd's Grey's co-stars expressed their joy over his newborn, with Kelly McCreary writing, "Kev!!! She's here!!! Congrats to you and Arielle!!!"
Jake Borelli commented that the news "Warms. My. Heart," while Stefania Spampinato simply shared her love with multiple heart emojis.
Meanwhile, Sarah Drew, who left the ABC medical drama last year, seemed both surprised and delighted by the news. "What!!!??? That's so amazing!!!!! Congratulations!"
Fans can likely look forward to more photos of the tot, as McKidd often posts about his family life on Instagram. Recently the father of four shared shots of his oldest son playing guitar, his youngest son celebrating Father's Day and his teenage daughter heading off to prom.