There's no doubt who Oliver Hudson considers his father to be.
ET caught up with the handsome 38-year-old actor on the New Orleans set of Scream Queens on Monday, where he didn't want to talk about his biological father, Bill Hudson. Oliver recently dug up old wounds when he Instagrammed a childhood throwback pic on Father's Day of himself with his sister Kate Hudson and Bill, writing "Happy abandonment day."
Oliver made it clear that he considers his dad to be his mother Goldie Hawn's longtime boyfriend, actor Kurt Russell.
PHOTOS: Stars You Didn't Know Were Related
"My dad and I rented a house together, cause he's doing a movie here, coincidentally, which has been great," he tells ET of being in New Orleans filming Ryan Murphy's latest show, Scream Queens. "The kids are coming down [his three kids with wife Erinn Bartlett] soon so it's about finding things to do for them, and keeping it cool, but it's fun. The food's amazing, the bars ... it's just an amazing city to be a part of."
He also opened up about what it means to play a father on the show.
"Your child is your child, you know? I have an actual paternal instinct, 'cause I've had three kids, so when I'm working with, you know, Skyler [Samuels], who plays my daughter, there's something that definitely kicks in there, and it's fun to play," he says. "It's new, it's different for me."
Bill, 65, recently publicly disowned both Oliver and 36-year-old Kate in an interview with The Mail. "I say to them now, 'I set you free,'" Bill said. "I had five birth children but I now consider myself a father of three. I no longer recognize Oliver and Kate as my own."
"I would ask them to stop using the Hudson name," he added. "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."
NEWS: Oliver Hudson Slams Biological Father Bill Hudson in Father's Day Instagram
Watch the video below for more on the Hudson family drama.