Whitney is the Gym Leader of Goldenrod City's Gym, known officially as the Goldenrod Gym. She hands out the Plain Badge to Trainers who defeat her. She specializes in Normal-type Pokémon. Whitney appears in Pokémon Gold, Silver, Crystal, HeartGold, and SoulSilver as the Leader of the Goldenrod Gym. She is the third Gym Leader that Trainers must defeat to move further in the game. She is known as "The Incredibly Pretty Girl!".

Whitney uses the Normal-type, and although she only began battling a little while ago, her talent attracted the Pokémon League to choose her as a Gym Leader. Her Gym is filled with other young girls like herself, who use cute Normal-type Pokémon like Meowth, and is shaped like a Clefairy. While in Pokémon Gold, Silver, and Crystal all challengers have to do to reach Whitney is navigate through the Gym's maze puzzle, Whitney is initially absent from the Gym in Pokémon HeartGold and SoulSilver. She can be found in Goldenrod's Radio Tower attempting to win a Radio Card. If the player helps her, she will return to the Gym. Despite this act of kindness, she will throw a temper tantrum upon defeat and refuse to give the Plain Badge. A Gym Trainer will tell the player that she will eventually calm down. Once calmed down, however, she will give the player the Badge, and TM45 (Attract). Apparently, this move is perfect for her because it makes full use of a Pokémon's cuteness.

Like the other Johto and Kanto Gym Leaders, Whitney will leave her Gym from time to time in HeartGold and SoulSilver. Unlike other Leaders, she will not travel far: just down the road to the Goldenrod Department Store any day between 12:00 PM and 4:00 PM. She's to the far left of the 6th floor. Once her Pokégear phone number has been obtained, she will accept rematches on Saturday afternoons at the Fighting Dojo in Saffron City. Her team in these battles will be significantly stronger than her team in the initial battles, although her signature Miltank will remain in her party. she uses a Clefairy, miltank, and Nidorina ♀