Baby makes five!

Chad Lowe and his wife Kim welcomed their third child, daughter Nixie Barbara Lowe, on March 18. “She came a little early, but she’s small and mighty,” the 48-year-old tells People magazine. “All is well.”

Nixie joins big sisters Mabel Painter, 6, and Fiona Hepler, 3, causing Chad to joke that he's "wonderfully outnumbered."

Explaining the meaning behind his newborn's name, the Pretty Little Liars star shares that Nixie references the water sprites of German folklore, which "seemed like a good fit because we’re both avid surfers — my wife more so than me," Chad reveals.

RELATED: 'The Returned' Star Agnes Bruckner Welcomes Son Sebastian

The little girl's middle name honors the Emmy winner's late mother.

Chad and Kim began dating in 2007, later tying the knot during an oceanside ceremony in August 2010. He was previously married to Hilary Swank.