Kenneth Mitchell, an actor in Marvel's "Star Trek: Discovery" and "Captain Marvel" franchises, has died, his family announced in a statement shared on his social media.
Mitchell was 49.
"It is with heavy hearts that we announce the passing of Kenneth Alexander Mitchell, our beloved father, husband, brother, uncle, son and dear friend," the family said in a statement.
Mitchell was diagnosed with ALS (amyotrophic lateral sclerosis) in 2018. He and his family shared periodic updates on his health in recent years.
In August, Mitchell marked the fifth anniversary of his diagnosis in an Instagram post.
"My brother humorously mentioned that they don't really have an ALS happy anniversary card in store. I want to celebrate today. The gift of life. I'm so grateful to have this day ahead. It's been a long five years. So many lost, so many won. Incredibly difficult times, mixed with many other blessings," Mitchell wrote at the time.
"At the heart of it all are friends and family, carers and doctors who come to the aid of my family relentlessly. Giving an abundance of support, love, care and encouragement. There's so much beauty in it. "This disease is absolutely horrific... Yet, despite all the suffering, there is so much to be thankful for."
A native to Canada, Mitchell won more than 50 film and television roles during his acting career. He played Carol Danvers' father in Marvel's 2019 "Captain Marvel" and the 2004 hockey movie "Miracle." Mitchell appeared in dozens of TELEVISION series, including "Jericho," "The Astronaut Wives Club" and "Switched at Birth."