56-year-old actor Eddie Marsan discusses limited support for his son's Tourette's diagnosis.

Eddie Marsan discusses lack of support after son's Tourette's diagnosis. Actor Eddie Marsan, known for roles in The World's End and Sherlock Holmes, has spoken about the difficulty finding help following his son's diagnosis with Tourette's syndrome. Marsan, 56, told BBC Breakfast that the condition, which causes vocal and physical tics, is often misunderstood and misdiagnosed, resulting in limited support for affected children.