Fleur

Fleur Delacour Weasley was a character in the Harry Potter series of novels by J.K. Rowling. Fleur participated in the Triwizard challenge at Hogwarts while a student at Beauxbatons Academy of Magic. She married Bill Weasley with whom she had three children.

In the Temeraire series of novels by Naomi Novik, a Fleur-de-Nuit(Flower of the Night) was a breed of dragon. They were mainly used by the French military and had the ability to see in the dark, and their dark color made them nearly invisible at night. They were sensitive to bright light, which could injure their eyes.

Fleur was a character on the U.K. television series Being Human. Her son became friends with the vampire Mitchell. She misunderstood their friendship, and believed Mitchell was sexually abusing him. Later when her son became critically wounded, Mitchell offered to save him by turning him into a vampire, which Fleur agreed to.

Fleur Morgan was a PAS (Protection and Security) officer in the U.K. Sci-fi series, Outcasts.

Fleur Blanc was a character in the Japanese anime series Eureka Seven.

Fleur is a French name that means, "Flower". Fleur has never ranked in the Top 1,000 names in the U.S. In 2014, it did not make the list at all. In 2013, it was given to just 9 girls.

Thor

In the Marvel Cinematic Universe, Thor Odinson was a prince of the planet Asgard, son of Odin and Frigga. He was banished to Earth by his father, Odin, for an unauthorized attack on the Jotunheim. While on Earth, he met and fell in love with Jane Foster. He regained his power after he attempted to sacrifice himself to protect Jane and her friends from a destroyer sent by his adopted brother, Loki. He later joined the Avengers to stop Loki from conquering Earth, and again to fight the A.I. Ultron. After defeating Malekith, Odin (actually Loki in disguise) offered Thor the throne of Asgard, which he declined. In the Marvel comics, his mother was Jord, or Gaea, the spirit of the Earth. When visiting Earth he sometimes takes on a mortal form, and is known as Donald Blake. If separated from his hammer, Mjolnir, for too long, he loses his power.

In the television series Stargate SG-1, Thor was a member of an alien race called the Asgard. Unlike the Asgard in the Marvel universe, in Stargate the Asgard bear no resemblance to humans. Thor and the Asgard protected some human worlds from the Goa'uld. Thor befriended Jack O'Neill and SG1, which led to an alliance between Thor's people and Earth. When the Asgard were facing extinction, Thor convinced the Asgard High Council to bequeath all their knowledge and technology to the people of Earth.

In the U.K. series, Being Human, the werewolf Thomas McNair named one of his vampire killing stakes "Thor."

In several of the Hitchhiker's Guide novels by Douglas Adams, the Thunder God Thor was friends with Zaphod Beeblebrox.

Thor is of Norse origin, and means "Thunder". Thor made the top 1000 names in the U.S. in 1961 (#964), 1965 (#964), 1966 (#894), 1968 (#881), 1969 (#957), and in 1971 (#912). In 2014, 114 boys were given the name Thor. 

Natasha

Natasha Romanova/Romanoff was a character from the Marvel Universe that was also known as Black Widow. She was a spy and an assassin. In Iron Man 2, Natasha infiltrated Stark Industries on behalf of S.H.I.E.L.D. In the Marvel Comics, she infiltrated the company in order to assassinate Anton Vanko as a member of the KGB. In both versions, she eventually defected and joined S.H.I.E.L.D and the Avengers.

In an alternate reality, Tony Stark, aka Iron Man, was born a woman named Natasha Stark. Natasha became Iron Woman, and married Steve Rogers, aka, Captain America.

Natasha Yar was the security officer on the U.S.S. Enterprise-D in the first season of Star Trek: The Next GenerationNatasha was a human born on the war-torn colony planet Turkana IV. She was killed in the line of duty on Vagra II by the entity known as Armus, as a display of his power.

Natasha Alexander was a character from Babylon 5. She was a telepath, and the grandmother ofLyta Alexander.

Natasha Miles was a character in the U.K. Series, Being Human. She was rescued from vampires by Mr. Rook, who then used her as bait for Tom and Hal. She fell under Captain Hatch's spell and committed suicide.

Natasha is of Russian origin, and a dimunitive of Natalya which means "Christmas Day." In 2013, it ranked as the 582nd most popular name for girls in the United States.

Hal

HAL-9000 was an artificial intelligence from 2001: A Space Odyssey by Arthur C. Clarke. HAL was short for Heuristically programmed, ALgorithmic computer. Hal was part of the computer in the Discovery One spaceship. HAL began to malfunction, and when the astronauts decided to disconnect his cognitive circuits, HAL decided to kill them. In the sequel, 2010: Odyssey Two, HAL was restarted, and his previous attempt to kill the astronauts was revealed to be due to a conflict in his programming. HAL sacrificed himself to save the astronauts, but was turned into a non-corporeal being by the monolith.

Harold 'Hal' Jordan was one of several humans to become member of the Green Lantern Corps. He was a member of the U.S. Air Force. When Abin Sur, a member of the Greeen Lantern Corps, crash landed in California, the power ring chose Hal Joran as it's replacement officer. He was one of the founding members of the Justice League. 

Hal Yorke was a vampire in the U.K. television series Being Human. He was born in the late 15th century. He went on a bloody rampage for centuries, and gained such an evil reputation that even the Old Ones were afraid of him. In the 20th century he lived with a werewolf named Leo and a ghost named Pearl. After Leo died, Pearl went with him to the afterlife, leaving Hal with another werewolf and ghost, Tom and Annie.

Halfast 'Hal' Gamgee was a Hobbit and a cousin of Samwise Gamgee in the Lord of the Rings by J.R.R. Tolkien. 

Hal the Archer, and Hal Korwin where minor characters in the Doctor Who television series. 

Hal is typically a nickname for Harold or Henry. As a stand alone name it is not very popular. In 2011, only 15 boys were named Hal.

Mitchell

In the television series, Being Human, John Mitchell was a vampire with a werewolf roommate in a flat inhabited by a ghost. Mitchell attempted to go 'dry', and refrained from feeding on humans, in an attempt to live a normal human life. In the end, he failed, and asked his werewolf roommate to kill him so that he would not continue to take human lives. 

Cameron Mitchell was a U.S. Air Force pilot, and later the leader of SG-1 in the series Stargate SG-1. While a pilot, he led the Earth forces at the Battle of Antarctica, becoming seriously wounded. When he recovered, he was given his choice of assignment. He chose SG-1, only to discover that the original team was dissolved, and he made it his mission to get them back together.

Gary Mitchell was a helmsman on the U.S.S. Enterprise in the original Star Trek television series. When the Enterprise traveled into the galactic barrier, Mitchell and Dr. Dehner came into contact with energies of the barrier. When they recovered, they developed powerful god-like abilities. Mitchell's powers corrupted his personality, and with the help of Dr. Dehner, Captain Kirk was forced to kill Mitchell.

Mitchell was a member of Katniss's sharpshooting team in The Hunger Games: Mockingjay. He was from District 13, and was killed during an assault by Katniss's team on the Capitol.

American Maria Mitchell was a 19th century astronomer who discovered a comet that became known as "Miss Mitchell's Comet". There is a crater on the moon named Mitchell in her honor.

Mitchell is a surname with several origins. It can be a variant of the name Michael, an anglicization of the Irish surname Mulvihill, which itself comes from Ó Maoil Mhichíl, or it might be derived from the Middle English word meaning 'Big'. Mitchell has appeared in the Social Security Administration's database as a first name since the first recorded year in 1880. In 1994, the name reached it's highest peak at #71. In 2011, it ranked at #418.