Hawaii-Five-O Star Welcomes New Son

The baby reportedly arrived Thursday, Oct. 25.

The Hawaii Five-0 star, 36, is already father to 15-year-old son Saxon, while Jones, 35, is mother to 3-year-old son Spike, each from previous relationships.

O'Loughlin and Jones, a surfer and model, first stepped out last November. The couple announced the pregnancy in August.