Kenneth Mitchell as Aurellio in 'Star Trek:Discovery.' - Michael Gibson/CBS A native of Canada, Mitchell acquired more than 50 film and television credits over the course of his acting career.

Actor Kenneth Mitchell, who was known for his work on "Star Trek: Discovery" and "Captain Marvel," died from ALS complications Saturday. He was 49.

Kenneth Mitchell, who played several characters in Star Trek: Discovery, and also was known for his roles in Jericho and Captain Marvel, has died from complications of ALS, his family revealed ...

Actor Kenneth Mitchell speaks at the “Discovery Panel – Part 2” panel during the 17th annual official Star Trek convention at the Rio Hotel & Casino on August 4, 2018, in Las Vegas.

Actor Kenneth Mitchell, known for his roles in the series “Star Trek: Discovery” and Marvel’s “Captain Marvel,” has died after a more than five-year battle with ALS, his family announced ...

Actor Kenneth Mitchell speaks at the “Discovery Panel – Part 2” panel during the 17th annual official Star Trek convention at the Rio Hotel & Casino on August 4, 2018, in Las Vegas.