After getting married in June 2001, Rafferty and Seppälä waited six years to expand their family. The pair's first daughter, Oona Gray, arrived in 22 Oct., 2007. Ever since she was born, Rafferty and Seppälä have kept Oona mostly out of the spotlight. Although the "Suits" star posts about Oona on her Instagram, the actor makes sure her daughter's face is never fully shown.
In October 2020, Rafferty celebrated Oona's 13th birthday by sharing a photo of her that only showed her from the chin down. "How did that happen? We officially have a teenager. We love her so much we must sing it from the mountaintops. My heart hurts. ❤️," Rafferty captioned her post, which featured Oona getting ready to blow out her candles.
Over the years, we've learned a little bit about Oona through Rafferty's Instagram posts. It seems Oona loves to travel and spend time outdoors with her family. Rafferty has shared pictures of Oona going on a nature walk in Arizona, bike riding in Paris, and canoeing in Vermont. Oona also enjoys spending time with the family's dog, Rupert, and is the best big sister to Iris. In November 2019, Iris wrote a letter to Oona in honour of Thanksgiving. "I am thankful for my sister because she gives me a napkin when my ice cream drips," she wrote.