According to this article from when the series was first aired, Ian McDiarmid was cast in a small role specifically because he looked a lot like Dennis Potter. Except thirty years later I'm thinking "Woah, it's Senator Palpatine!"
I love seeing young Ian McDiarmid! And now I guess I know what Dennis Potter looked like.
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I love seeing young Ian McDiarmid! And now I guess I know what Dennis Potter looked like.