Blue

Blue, known as Gale Oak in the anime, is the female counterpart of Gary/Blue Oak from the original Pokemon. Her name is based off the color Blue, like the other Protagonists. She is the daughter of the 2nd Main protagonist.

History
Blue is from Kanto's Pallet Town, along with her childhood friend, Red. She recieved her starter pokemon, Charmander, from her father, Professor Oak II. Sometimes, even Blue can't help but wonder what's wrong with Red. In Red and Blue, she travels alone, with her pokemons. . In FireRed and LeafGreen, she teams up with Red and Green on their Pokemon Journey.

Personality and Appearance
Blue is unfriendly, mysterious and enigmatic. She often uses the phrase "Smell' ya later" when she's about to leave. She calls everyone an idiot. Blue loves to tease Red and Green, often offending them. Blue is very arrogant about her rank, and always thinks she's the best. Her arrogance drops when Red defeats her in the World Tournament.

Red and Blue
Blue has messy shoulder length brown hair. Her bangs are shifted to the left, freely. From top, her hair is spiky, ending messy at the bottom. She has cyan eyes. She wears a black and purple sleeveless neck-top. She wears blue and black armbands, loose navyblue jeans and a red and blue locket. She wears white slippers.

FireRed and LeafGreen
Blue's hair remains the same in FRLG. She has blue eyes. She wears are black right-shoulder-free top, and a blue t-shirt inside. She wears blue jeans, black socks and brown boots. She also wears a small white locket.

Trivia

 * According to the creator, Blue and Red are best friends, no matter their rivalry, the are willing to give up one's life for eachother.