Star Wars sets from Lego are very popular. The characters that
are available include 32 of the major characters and also 8 of the
minor characters. There are 6 Star Wars Lego sets.
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Imperial
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There are billions of Star Wars characters.
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Luke Skywalker for original trilogy, Anakin Skywalker (Luke's dad) for the newer trilogy. Here is a great list for referencing the main characters of the Star Wars saga.