Hawaii Five-O star Scott Caan has become a first-time father.

The actor's girlfriend, Kacy Byxbee, gave birth to the couple's first child, a daughter called Josie James, earlier this month (09Jul14), according to E! News.

A source claims Caan took time off from filming the hit Tv series to be by Byxbee's side as they welcomed their new bundle of joy.

Caan, the son of veteran actor James Caan, met his partner on the set of Hawaii Five-O.