Princess Allura

Princess Allura is ruler of Planet Altea and last surviving member of royal family after the death of her father King Alfor. She became the pilot of the Blue Lion of Voltron after Sven became no longer able to do so.^[5] She has highly intelligent mice that can understand human speech. Allura and Keith have mutual romantic feelings for each other, and she is also stalked by Prince Lotor for her affection.

In Voltron Force, Allura continues to pilot the Blue Lion. She becomes a mentor to Vince, and her niece, Larmina. Due to her conflicting duties as Princess of Arus and member of Voltron Force, she asks King Alfor for advice, who suggests that she step down as the pilot of the Blue Lion to become the full-time Queen of Arus. Allura complies with her father's advice and promotes Larmina to be the Blue Lion's pilot. Allura is in a romantic relationship with Keith and proposes marriage to him so that he can become her king consort.

In Voltron: Legendary Defender, Allura is the teenage princess of Altea, the daughter of King Alfor and last surviving female member of the Altean race. She was asleep in the Castle of Lions with her servant Coran for 10,000 years, and commanded and piloted the Blue Lion of Voltron, until she sacrificed herself for the galaxy in the series finale.

In the Voltron: Legendary Defender, Princess Allura is not initially a member of the Voltron force.^[6] But after the "disappearance" of Shiro, with Keith becoming the Black Pilot and Lance taking Keith's place as Red Pilot, Allura, to complete the Voltron team, is chosen as the Blue Pilot.

In the classic version of Voltron, Allura was depicted as either Altean or Arusian depending on the region the anime was aired. Also, she was depicted as having fair skin and blonde hair. In Legendary Defender, she was depicted as Altean, and was re-imagined as being dark skinned with white hair (likely so she was distinguishable from her human allies) and, unlike the rest of the main cast, spoke with a British accent.

In the 2011 Devil's Due comics, the character Allura is portrayed as a teenager.^[7] The comic book version of Allura places her at age 19, and depicts her with a much stronger backbone than her cartoon counterpart. When her home planet Arus was ravaged by the forces of Zarkon and her parents murdered by Zarkon's own hand, she was taken in and raised by Coran, a retired combat instructor in the royal army, and was forced to grow up much too fast. Years later, she would renounce her title of "princess," answering only to "Allura," until her people are liberated from Zarkon's tyranny. Visions while she slept showed the spirit of her father King Alfor promising that five young men would come to Arus in search of the legendary robot Voltron. When Keith, Lance, Hunk, Pidge, and Sven arrive on Arus and speak of the mighty robot, Allura instantly knows that they are the ones spoken of in her visions, and helps them to find the five hidden lions that will unite to form Voltron. When Voltron fails to combine properly due to a brain defect within Sven, Allura mans his Blue Lion, and with her royal Arusian blood, the unification of Voltron is finally a success, and she becomes a member of the Voltron Force. During the course of the comic, she begins to develop feelings towards Keith and vice versa.

The Legendary Defender incarnation of the character was praised for being diverse.^[8][9]