The Star Trek actor and political activist told Late Night with Seth Meyers there were parallels with what is happening on the U.S. border with his experience in World War Two.
Takei said he has "no words" for federal government plans to establish an immigrant detainment center just miles from where he was imprisoned during World War II.
George Takei has been accused of sexual assault, and an old interview with Howard Stern suggests his understanding of consent may be flawed.
Eleven letters written by the Captain Kirk actor will be auctioned.
The changes to Sulu's sexuality aren't in line with creator Gene Roddenberry's vision, he said.
Videos, tweets and a Google doodle honor the historic moment in space exploration.
The presidential candidate and other notable figures left comments for a young gay boy afraid of what his future holds.