TV
The 67-year-old said he is a fan of the hit sci-fi show and is disappointed that he has never been invited to make a cameo.
He said: "I have been a fan actually, yes, and deeply dismayed that I was never asked to be in it! I think it's a terrific series."
The actor will star with current Doctor David Tennant in a Royal Shakespeare Company production of Hamlet next year.
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