Pavel Andreievich Chekov took his first posting as navigator on the U.S.S. Enterprise under Captain James T. Kirk.

Captain Kirk was named after his paternal grandfather -- Tiberius Kirk.

Although it suffered heavy damage, the U.S.S. Ahwahnee survived the Battle of Wolf 359 and was salvaged after the battle and restored. Of the 40 starships Admiral J. P. Hanson gathered to battle the Borg, it was the only one to survive.

Sisko loves baseball, a sport that has largely disappeared by the 24th century. On his desk, he keeps a baseball given to him by an alien impersonating Buck Bokai, his favorite historical baseball player halfway through the first season.

Nichols planned to leave Star Trek after the first season and return to musical theater, but a chance meeting with Martin Luther King, Jr. convinced her to stay. He was a fan of the show and felt that her character signified a future of greater racial harmony and cooperation.

Amanda Grayson was a schoolteacher from Earth who married the Vulcan diplomat Sarek and gave birth to Spock in 2230.

B'Elanna Torres is the half-human half-Klingon Chief Engineer of the U.S.S. Voyager.

In "Obsession", Captain Kirk becomes obsessed with destroying a deadly entity he once encountered in his youth -- a dikironium cloud creature that killed half the crew of the U.S.S. Farragut when he was a phaser station operator on the ship.

Phlox is a Denobulan, and was on Earth as part of the Interspecies Medical Exchange when called to serve aboard the Enterprise. As part of the Exchange, he corresponds regularly with his human counterpart on Denobula Triaxa.

In "Past Tense", Sisko is transported to early 21st Century Earth where he accidentally causes the death of Gabriel Bell, an important historical figure in early 21st century America. Sisko takes Bell's place to preserve the timeline.