Actor Jonathan Harris, left, who portrayed Dr. Zachary Smith and co-star Billy Mumy, who portrayed Will Robinson, are shown in this Oct. 5, 1966, handout photo, in a scene from the 1960s science fiction show, Lost in Space. Harris died Sunday, Nov. 3, 2002, from a blood clot in his heart while receiving therapy at a hospital in the Encino area of Los Angeles, for a chronic back problem, family spokesman Kevin J. Burns said Monday. He was 87. (AP Photo/)