Among the notable figures is Dean Stockwell, who played the influential Admiral Edward Sheffield. Stockwell’s illustrious career spanned decades, with memorable roles in “Quantum Leap” and “Battlestar Galactica.” He passed away on November 7, 2021, at the age of 85. Another cherished actor, Alexander Ketuov, portrayed Captain Alex Vulkanov, a skilled Russian naval officer whose performances were lauded for their authenticity. Ketuov died on June 6, 2019, at 59 after a brave battle with cancer.