I have met a few myself since I started dreaming
I'm a big trekkie though

I themed my Dream Journal off of Star Trek, actually. If you want to see it it's here.
Meeting star trek characters is one of my recurring elements, and I love meeting them
So far I've met Cmdr. T'Pol, Lt. Reid, Cmdr. Tucker, Cmdr. Riker, and Lt. Cmdr. LaForge, listed chronologically.

I want to meet Picard, perhaps BE Odo... Spy on a developing race, studying as we wait to make first contact.

I've thought, that Lucid Dreaming would sort of be like being born into the Q continuum as a a baby, like was proposed by Q in VOY: "The Q and the Grey". You first know your world, and you learn that with brain power you can control your world. Eventually, with enough practice, you would be seemingly omnipotent in your dreams.