Scott Caan, Kacy Byxbee

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Move over, Danno. Make way for Daddy-o!

Scott Caan and girlfriend Kacy Byxbee welcomed their first child together earlier this month—and they have a girl!

Daughter Josie James (a nod to granddad James Caan, it sounds like) was born July 9, a source exclusively confirms to E! News. 

Caan, 37, and Byxbee have been dating for at least a few years since meeting on the set of Hawaii Five-0. The pretty private actor talked briefly about a girlfriend during an appearance on Chelsea Lately in January 2013, and they didn't formally announce Byxbee's pregnancy themselves.

Scott Caan, Kacy Byxbee

Frazer Harrison/Getty Images

"She should get the purple heart because I'm a complete disaster," Caan said about his live-in love.

Meanwhile, he may not have quite as much time for certain bromantic activities with Hawaii Five-0 costar Alex O'Loughlin anymore—or just not as much free time in general.

Talking about his love of surfing, he told Queen Latifah during an appearance on her talk show in May, "I've tried dragging Alex out with me to show him how to really surf, but because he's got kids now, we don't get out as often together as I'd like."

Trips to the park with kids on their shoulders, it is! O'Loughlin, also dad to 17-year-old son Saxon from a previous relationship, welcomed son Lion in October 2012.

Caan's rep has not yet responded to requests for comment.

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