Actors Kate and Oliver Hudson are considered dead by their father Bill Hudson.
The 65-year-old actor, who has three other children, has requested Kate, 36, the Rules of Engagement actor, 38, who he fathered with actress Goldie Hawn, stop using the surname Hudson, as he does not consider them to be his after their hurtful posts on Twitter on Father's Day, reported Female First.
At the time, along with a picture of Bill with the two siblings as young children, Oliver posted to his sister, "Happy abandonment day..."
"I say to them now, 'I set you free'. I had five birth children but I now consider myself a father of three. I no longer recognise Oliver and Kate as my own.
"I would ask them to stop using the Hudson name. They are no longer a part of my life. Oliver's Instagram post was a malicious, vicious, premeditated attack. He is dead to me now. As is Kate. I am mourning their loss even though they are still walking this earth," Bill said.