6 Pop Culture Visionaries Who Get Too Much Credit wrote:
Even minor characters like C-3PO weren't the juice of Lucas' mindgrapes. Lucas originally wanted 3PO to be an "oily, car salesman type" rather than our lovably gay robot butler friend. If that character archetype sounds familiar, that's because Lucas would later get his sleazy salesman in The Phantom Menace, in the shape of the flying anti-Semitic stereotype, Watto. The actually likeable, not-racist version of C-3PO that we know today was largely thanks to Anthony Daniels. Daniels was originally hired as just a mime inside the gold suit, with someone else providing the voice-over. But actor Stan Freberg convinced Lucas to not use a different voice and stick with Daniels -- which is particularly remarkable since Freberg was one of the actors considered to replace Daniels' voice. That's right: A struggling actor actually had to step up and sacrifice his own livelihood just to kill one of Lucas' terrible ideas.

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