As revealed in the original series, Starfire's real name is Koriand'r, an alien princess from the planet Tamaran who was next in line for the throne and rule as Queen or Empress. When the powerful Gordanians invaded the planet, her devious older sister Komand'r (aka Blackfire), wanting the throne for herself, took the opportunity to convince the Gordanians to capture Koriand'r as Tamaran's soon-to-be-queen, in exchange for peace and her place in the throne. Koriand'r went with them, convinced it was for the good of her planet, only to discover Komand'r's treachery and the Gordanians' plan to bring her to their Citadel to live out the rest of her days as a tortured slave. Koriand'r then managed to escape during space flight and fled to the nearest planet, Earth. The Gordanians followed in hot pursuit, but were defeated when Koriand'r was defended by four superpowered teenagers. Once she was officially free of the Gordanians, Koriand'r decided to stay on Earth, took the name Starfire (which is what Koriand'r translates to in English), and joined the other heroes in forming the Teen Titans.
Starfire reprises her role from the original Teen Titans as the quirky, compassionate, yet powerful alien of the team. Even though she is often the one to ask the meaning of a word, she is extremely loyal and kindhearted, putting her friends before herself. Her usual mood is extremely friendly, but she will flip into a rampage if a good friend/loved one is in danger or betrayed her. She can often cause chaos in a rampage.