Princess Allura is the Princess of Altea and Daughter of the late King Alfor, She assisted her father in his war counsel, commanded the Castle of Lions in the fight against Zarkon, piloted the Blue Lion after Sven’s death She was a formidable combatant, strategist, speaker, alchemist, and the last of the Sacred Alteans: once revered for their ability to channel and manipulate Quintessence. Allura was the face of the resistance against the Galra and stopped at nothing to bring peace and balance throughout the Universe, even at the expense of her own life.
She is in a relationship with Keith.
And she is reprised by B. J. Ward in the English dub and Rumiko Ukai in the Japanese dub. (But in some point in time, that someone might replace her if it is a tribute.)