What "MarkusTay" and Mr. Cox said.
That being said, I met Nichelle Nichols back in 1972... and then again in 2012.. and she remembered me.
Met her once myself, in a Creation autograph line. She was clearly very tired, but willing to sign a few more autographs than her handlers wanted her to sign.
And I met James Doohan in an autograph line, and despite his fatigue and advanced age, he engaged the fans in smalltalk.
I think I spotted DeForest Kelley near the restroom; given that he was obviously tired, and probably there for the same reason I was, and that because of his advanced age and ill health, would not be signing in person, I declined to bother him, or even to confirm that it was him.
And I once met Pat Tallman, again in an autograph line. Given that her ST involvement was limited to stunts and (if I remember right) a single speaking guest appearance, she was (again, if I remember right) sharing an autograph table with Chase Masterson and Camille Saviola. And given that her B5 role was of a much higher profile, I told her one or two B5 jokes, which she apparently liked (e.g., "how many Vorlons does it take to change a lightbulb? Vorlons don't need lightbulbs; they could get jobs
as lightbulbs").
And I've met writers. With the result that I have a copy of the "Phantasms" script, autographed by Brannon Braga: "It's only a dream." (I thought about celebrating with a piece of cellular peptide cake, but I don't care for mint frosting.)
Fans taking a television series seriously are a good thing. Their doing so can even help keep the people making the series honest. (Case in point, after Dr. Bialik had begun referring to the first round of
Jeopardy! as "single Jeopardy" frequently enough to be irritating, and a relatively small number of fans complained [I found it downright grating, but held my tongue], she publicly apologized [even after somebody had pointed out that Trebek had done so a few times], and immediately banished the phrase from her vocabulary.)