For example, Caan has been asked to shoot a CBS promo out on the terrace of a Waikiki hotel between takes — and he doesn't even "Be here.
Aloha," he mutters three times, with nary a smile and a serious I-don't-give-a-crap attitude.
"We both lucked out," says O'Loughlin, who has been receiving on-set chess lessons from Caan.
"We really bounce off each other, and as we get closer, we can just shoot each other a look, which adds a lot to our relationship on screen." While O'Loughlin has been slowly emerging as a TV fan favorite for the past few seasons, Caan has remained pretty much under the radar since the late '90s as a dependable supporting player in film (the that's making this recognizable tough guy a bankable name, which is why CBS believes viewers will tune in if Caan tells them to "Be here" — even if he personally finds the spots moronic.
"I don't know how to be a cornball, and this is a cornball thing," says Caan after wrapping the promos.
Daughter Josie James (a nod to granddad James Caan, it sounds like) was born July 9, a source exclusively confirms to E! Caan, 37, and Byxbee have been dating for at least a few years since meeting on the set of costar Alex O'Loughlin anymore—or just not as much free time in general.
Scott Caan and girlfriend Kacy Byxbee welcomed their first child together earlier this month—and they have a girl!
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.
Both have been struggling to adjust to a new island home (Danny's left New Jersey to be closer to his daughter, while Caan jets back to L. every chance he gets to visit with his girlfriend).
Both live in the shadow of a larger-than-life presence (Danny's superior, former Navy SEAL Steve Mc Garrett, and Caan's real-life pops, Oscar nominee James Caan).
And both are all about the work, with little patience for frivolity.