‘Dynasty’ Actor, 2 Others Held in Attempted Murder : Crime: James Patrick Healy is arrested in connection with attack on sister’s estranged husband.

James Patrick Healy, an actor who played roles in the television soap operas “Dynasty” and “Santa Barbara,” was arrested early Saturday with his sister and a friend in connection with the attempted murder of his sister’s estranged husband, authorities said.

Healy, 42, who portrayed the characters Derek Griffin in “Dynasty” and Sean Rowan in “Santa Barbara,” allegedly forced his way into a Rosemead home with his sister and the friend shortly after midnight Friday and used a piece of glass to slash the throat of Jacob Benjamin Rivera, 42.

Deputies arrived and arrested Healy, his sister, Annemarie Rivera, 35, and an acquaintance, Henri Marechal, 39, as the trio was on top of the bloodied victim, said Deputy Britta Tubbs, a spokeswoman for the Los Angeles County Sheriff’s Department. On Friday evening, the spokeswoman said, Jacob Rivera had received threatening telephone calls from Annemarie Rivera, whom he is divorcing.

The suspects were booked on suspicion of attempted murder and were being held in lieu of $1 million bail each. Rivera was listed in fair condition at San Gabriel Valley Medical Center.