Gaius

In Battlestar Galactica, Gaius Baltar was used by a Cylon spy to help bring about the holocaust that killed most of humanity. He was rescued from Caprica, and ended up on Galactica. He invented a Cylon detector, and led a monotheistic cult. He was also elected President of the twelve colonies.

In Frank Herbert's Dune, Gaius Helen Mohaim was a Bene Gesserit Reverend Mother. She was part of the conspiracy to end Paul Atreides' rule, and was later executed by Alia Antreides.

In Jim Butcher's Codex Alera series, House Gaius is a ruling house of Alera.

In Final Fantasy XIV: A Realm Reborn, Gaius van Baelsar was a general who lead the invasion into Eorzea. He was known as The Black Wolf.

Gaius is a Latin name from ancient Rome, and means 'Happy'. Only 15 boys in the United States were named Gaius in 2015.

Dune

Dune was the name of a popular Sci-fi novel by Frank Herbert. There were five sequels to the book, Dune Messiah, Children of Dune, God Emperor of Dune, Heretics of Dune, and Chapterhouse: Dune. The series was later continued by his son and Kevin J Anderson, based on notes discovered after his death. 

Dune is set on the desert planet Arrakis thousands of years into the future. The people of Arrakis have evolved advanced physical and mental abilities. The most valuable substance in the Dune universe is a spice that is only found on Arrakis. The Dune civilization is ruled by rival noble houses.

For most people, Dune is a nature name, so if you're looking for something that doesn't scream 'geek', this would work. It is unusual, and doesn't appear in the Social Security name database. I think it's more suitable for boys. 

Oh, and check out this post over at Baby Name Pondering. I'm a little dubious on using Pixel for a person, but it's adorable on that cat!