David Hasselhoff reunites with his Baywatch co-stars for his 70th birthday celebration.

David Hasselhoff reunites with his Baywatch co-stars for his 70th birthday celebration.

Former 'Baywatch' cast mates David Chokachi, Kelly Packard, and Jeremy Jackson joined him.

He's an incredible human being with so much love to give to the world. So many exciting adventures with this guy! Much affection."

In the episode, Jackson played David's onscreen son Hobie Buchannon, and he sent a heartfelt greeting to his "TV dad."