YMMV / The Sarah Jane Adventures, S4 E11&E12: "Goodbye, Sarah Jane Smith"

• Complete Monster: Ruby White is a manipulative Qetesh who feeds on emotions, considered so horrible by her own race that she was exiled. Ruby began travelling to a variety of worlds, putting them through terrifying illusions and helping invasions be carried out successfully so she could feed on the population's suffering, before finally destroying the worlds in her wake. When she arrives on Earth, Ruby tricks Sarah Jane into believing she is useless and that her loved ones prefer Ruby to her, enabling Ruby to feed on Sarah Jane's sorrow and weaken her. Ruby then reveals that she plans to use Sarah Jane's own technology to assist malevolent aliens in whatever villainy they subject Earth to, so that Ruby can feast on humanity's pain until she finally repeats her usual cycle and destroys the planet.
• Harsher in Hindsight: The title becomes much harsher when you realize this was the last episode that aired before Elisabeth Sladen's death. Sarah Jane appears to be dying from a disease and at the end of the episode, she says she feels like she could keep fighting aliens forever.
  • Not only that, but she's replaced by someone who's equally as good as her, the fate of most actors who die during filming. But since Elisabeth Sladen has always played Sarah Jane, the writers could never do that to her.
• Hilarious in Hindsight: A villainess with a red coat uses illusion to get closer to the main characters. Sounds familliar?

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