|Marta Kristen (1945 - )|
|Lost in Space: Attack of the Monster Plants (1965) [Judy Robinson]: Playing a dual role as both "Judy" and her alien-plant duplicate, the duplicate is killed when the family uses weed-killer on all the plant-creatures. (The original "Judy" survived the episode and the rest of the series, of course.) (Thanks to PortsGuy)
Terminal Island (1973) [Lee Phillips]: Machine-gunned by the guards during an escape attempt.