'Dynasty' Star Geoffrey Scott Dies Following Battle With Parkinson's Disease Celebrity The actor known for his roles in TV shows like 'Dynasty' and 'Dark Shadows' has passed away at the age of 79 following his struggle with Parkinson's disease. Mar 4, 2021 His wife Cheri Catherine Scott confirmed to The Hollywood Reporter that Scott had lost his battle with Parkinson's disease on 23 February (21) - the day after his birthday. Scott was most well known for starring as tennis pro Mark Jennings on "Dynasty", which saw him shockingly unveiled as Linda Evans' character Krystle Carrington's first husband. He also appeared in gothic soap opera "