15 cowards you love to hate from sci-fi movies and TV

15 cowards you love to hate from sci-fi movies and TV
Not everyone is cut out to be the hero (or even stand next to the hero, except in publicity photographs). And yet somehow we love them ... love to hate them, that is. Here are 15 of sci-fi's greatest, most loathsome cowards, from C-3PO to Shaggy.
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