Kevin Costner, the accomplished actor, has garnered attention not only for his illustrious career but also for his extensive family. Among his seven children, one remains relatively unknown to the public eye—Liam, an illegitimate son whose story has piqued curiosity.

Join us as we explore all that is known about this intriguing individual.

Costner’s marital journey encompasses two unions. His first marriage to Cynthia Silva lasted from 1978 to 1994, during which they welcomed three children into the world: Annie and Lily, their daughters, and Joe, their son.

Subsequently, Costner entered into a second marriage with Christine Baumgartner in 2004, which endured until 2023. During this period, they became parents to three children: Kayden Wyatt and Hayes Logan, their sons, and Grace, their daughter.

Liam, their son, was born in 1996, initially prompting Kevin to contest his paternity. Nevertheless, a paternity test conducted by Bridget left no room for doubt.

Interestingly, a year after Costner’s second marriage, Bridget herself entered into a new marital bond. Surprisingly, her chosen partner was none other than the American billionaire and business tycoon William Koch, who subsequently became Liam’s stepfather.

Together, Bridget and William share a daughter named Caitlin, while the billionaire has four additional children from previous marriages.

Liam, intentionally keeping a low profile, has pursued a career as a luxury real estate agent and adopted the name Liam Rooney Koch.

Though information regarding his personal life remains scarce, online estimations have surfaced regarding his wealth. According to these calculations, his fortune is valued at a minimum of $800 million, including a $40 million inheritance from his biological father, Kevin Costner.