Kevin Costner Siblings: Meet Daniel Craig Costner and Mark Douglas Costner

Kevin Costner has two siblings, an older brother named Daniel Craig Costner and a younger brother named Mark Douglas Costner, who died shortly after his birth.

Kevin Costner’s brother Daniel Craig Costner is a businessman. Kevin has not revealed enough identifying information regarding his siblings. However, they are of American nationality.

Kevin Costner graduated from Villa Park High School in 1973 and earned a BA in marketing and finance from California State University, Fullerton (CSUF) in 1978.

Kevin Costner rose to prominence with his starring roles in The Untouchables and No Way Out (1987) and has starred in Fandango, American Flyers, and Silverado among many others.

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Kevin Costner appeared in Bull Durham (1988), Field of Dreams (1989), Dances with Wolves (1990), JFK (1991), Robin Hood: Prince of Thieves (1991), The Bodyguard (1992), A Perfect World (1993), and Wyatt Earp (1994).

For his role as John Dutton on the Paramount Network original drama series Yellowstone, Kevin Costner received a Screen Actors Guild Award nomination and a Golden Globe award.

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