Christian Cousins, who shared the screen with his twin brother during a childhood acting career, has died at 43 following an illness.The news was shared by Christian Cousins’ half-brother, Jonas Roeser, in an Instagram post published October 22.Jonas Roeser reflected on knowing his brothers from a distance while growing up, even before they met as adults.“It’s hard to share that my brother, Christian Cousins, has passed away.” View this post on Instagram Instagram PostRoeser continued:“Christian and his twin brother, Joseph ‘Joey’ Cousins, are my brothers through my biological father. They grew up in California while I was in Washington, and I didn’t get to know them until I was in college.”He added:“Before that, I grew up watching them on television in Knots Landing and the lead role of Dominic in Kindergarten Cop with Arnold Schwarzenegger.”Christian Cousins and Joey Cousins became familiar faces on screen as children, appearing together in several television and film projects.Their credits included Knots Landing, Critters 3, Eerie, Indiana, Highway to Heaven, Roxanne: The Prize Pulitzer, Empty Nest and Twin Sitters. They eventually stepped away from acting.For Roeser, Cousins’ work represented only one part of his life and legacy.“But those roles are only a small part of how I’ll remember Christian. He was a character, full of passion and energy, with big stories and even bigger dreams.”Roeser went on:“Rest easy, Christian. I hope your soul is at rest and that you’ve found peace. You are my brother, and you will be missed.”Roeser said Cousins had been dealing with liver disease before his death.“Christian had been very sick with liver disease,” Roeser wrote. “It brings me comfort to believe he is now in heaven with his mother, free from the pain he was carrying.”Roeser’s post did not specify when Christian died.Christian Cousins found dead during welfare check at California home, new details revealNew details have surfaced about the circumstances surrounding Cousins’ death, including how the former child actor was found at his California residence.The Irvine Police Department said officers went to Cousins’ home on October 20 at 12:01 p.m. local time following a request for a welfare check.Police found the 43-year-old actor dead inside the residence. Kyle Oldoerp, a public information officer for the Irvine Police Department, told People:“There was no sign of suspicious circumstances.”Following the discovery, the Orange County Sheriff’s Department Coroner was called to the property and took custody of Cousins’ body.Also Read: Arnold Schwarzenegger’s Santa goes on an unexpected crime spree in The Man with the Bag trailerAlso Read: "We hated each other" — Arnold Schwarzenegger opens up about his initial terms with Sylvester Stallone