Who Is Mark Douglas Costner? Late Brother Of Kevin Costner

by Mela Sun Jul 30 2023 Updated On Tue Aug 01 2023

Mark Douglas Costner was the brother of Kevin Costner, an American actor.

More About Mark

Mark Douglas Costner was the younger brother of the well-known American film actor and director Kevin Costner.

Kevin is famous for playing tough characters with sensitive sides in movies and has won several awards, including two Academy Awards. 

Mark was born on January 17, 1953, in Lynwood, Los Angeles, California.

Unfortunately, he passed away shortly after birth which was a sad event for the family. 

He was the second child in the family. His father, William Costner, worked as an electrician and later became an executive at Southern California Edison.

His mother, Sharon Rae Tedrick, was a welfare worker. Mark had another brother besides Kevin named Daniel Craig Costner, who is a businessman. 

They were raised in the Baptist faith, a type of Christianity. Kevin was not very interested in academics during school but loved playing sports, especially football. 

He also enjoyed playing the piano, writing poetry, and singing in the choir. 

Kevin has said that when he was seven years old, watching the movie “How the West Was Won” significantly impacted his childhood. 

Parents of Mark Douglas Costner.
Parents of Mark Douglas Costner. Source: Instagram


Mark was born on January 17, 1953, and died on January 18, 1953, one day after his birth. 

Net Worth

As an American actor, producer, and director, Kevin's net worth is about $250 Million.

Brother Failed Marriage Life

Kevin has a wife named Christine Baumgartner. Christine is moving out of their big house in Santa Barbara, California, after 18 years of marriage.

The couple is getting divorced, and she is following the advice in their prenuptial agreement. 

She will stay in a smaller house on the same property so their children’s life is not disrupted. 

Christine is looking for a new house permanently but wants to keep things as normal as possible for the kids. 

A judge ordered her to move out by July 31, but she had requested more time if they reached a child-support agreement, which hasn’t happened yet. 

Kevin’s legal team argued that Christine was making baseless arguments to stay in the house, and they asked the court to order her to vacate the property by July 13.

Both Kevin and Christine went on separate vacations with their three children Cayden Wyatt, Hayes Logan, and Grace Avery.

Kevin took his teenagers to British Columbia, and Christine went to Hawaii with the kids, where she was seen spending time with another person. 

Christine was awarded $129000 per month in terms of child support, although she had initially requested a higher amount that was criticized as inflated by Kevin’s side.

Kevin's estranged wife filed for divorce.

Kevin Costner with his wife.
Kevin Costner with his wife. Source: Instagram

Kevin Talks About Growing Up In Compton

In this YouTube Video, Kevin talks about different things, like being honored in the Hall of Great Western Performers growing up in Compton and his TV show Yellowstone.

He remembers how his parents’ Oklahoma roots shaped his upbringing and share a funny story from his kindergarten days when he brought his father’s rifle, which got him into trouble. 

Kevin also talks about the dangerous bull poker game shown in Yellowstone but admits he is not a fan of it. 

He admits that he dislikes it and compares it to watching bull riding on TV. 

Kevin mentions using a rifle as a prop on a show and how it might cause controversy if it happened now. 

He then shows a video of him and his wife fly-fishing with their kids, praising her careful behavior during the fishing trip. 

The host jokes about sharing the video, and Kevin talks about taking his wife home after the fishing trip.

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