When you're in the limelight, you need to watch your every move! Welcome to WatchMojo, and today we’re counting down our picks for the most notable actors whose questionable decisions damaged their TV show’s image while on air, ultimately leading to its downfall. Our countdown includes actors Kevin Spacey, Alec Baldwin, Jeffrey Tambor and more! Which of your favorite shows was ruined by one of its stars? Let us know in the comments below.

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