Best known for playing Sulu on the original “Star Trek” TV series and the six movies that followed, Takei is unlikely social media royalty. Unofficially dubbed the King of Facebook, he counts 4 million fans in his online empire — including “Trekkies,” Howard Stern listeners, and the LGBTQ community — who devour his quirky mix of kitten jokes, “Star Trek” references, heartfelt messages, and sci-fi/fantasy memes. An outspoken advocate for civil rights, Takei has used his unmistakable baritone in several satiric PSAs, including one in response to Tennessee’s infamous “Don’t Say Gay” bill that encourages viewers to say, “It’s okay to be Takei.” His current projects include the musical Allegiance, drawn from his experience of growing up in a Japanese-American internment camp during World War II, and the recently published Oh Myyy! There Goes the Internet. Follow the king’s rule on Facebook or Twitter @georgetakei.