Jonathan HarrisJonathan Harris, made famous by his role as the villainous Dr. Smith in the ’60s sci-fi classic Lost In Space dies due to complications from a blood clot in his heart. Harris’ career featured some notable film work, chiefly in the area of voicing cartoon characters (including, most recently, A Bug’s Life), but most of his career was spent on television, with appearances in golden-age anthology shows like Lights Out, General Electric Theater, The Twilight Zone and Night Gallery, as well as other classics like Bonanza, Zorro, Bewitched, and even Fantasy Island and Love, American Style.