Katherine Hillard

Katherine Hillard (simply known as Kat) is one of the main protagonists in Mighty Morphin Power Rangers, Power Rangers Zeo, and the 1st half of Turbo. She is the second Pink Ranger and second Pink Ninja Ranger of the Mighty Morphin Power Rangers, as well as Zeo Ranger I Pink of Zeo Rangers, and the first Pink Turbo Ranger of the Turbo Rangers. She is also Tommy Oliver's love interest, but later wife.

History
Katherine was a former champion swimmer who gave up her ambition after a diving accident. She came to Angel Grove from Surrey Hill, Australia. However, she quickly became the target of Rita Repulsa who made her as spy. She gave Katherine, among other things, the ability to change a cat to walk around unseen. She was found in her cat form by Kimberly Ann Hart and Aisha Campbell, the Pink and Yellow Rangers. This gave her the opportunity to spy on the rangers and pass on crucial information to Rita.

Katherine stole Kimberly's power coin and managed to steal the Falconzord, making the other Ninjazords worthless. Because the coin was now in the hands of evil, Kimberly lost her powers and also her life energy.

When Kimberly got an accident in the youth center due to her weakened condition, Rita broke control of Katherine and brought Kimberly to the hospital. She did, however, pretend she was still bad to invade Rita and Zedd's headquarters and steal the Pink Rangers power coin.

When Kimberly left to train for the Pan Global Games, she passed her position as Pink Ranger to Katherine. She quickly got a relationship with Tommy Oliver at the team.

At the beginning of Power Rangers: Zeo, Katherine with her piece of the Zeo crystal became the Pink Zeo Ranger. When Tommy received a letter from Kimberly during this season stating that she had met someone else, the relationship between Katherine and Tommy became even stronger.

In the movie Turbo: A Power Rangers Movie, Katherine's powers were further strengthened to those of the Pink Turbo Ranger. After graduating, she became a student counselor at Angel Grove High.

Katherine's role with the Turbo Power Rangers team was short-lived. Dimitrai thought she and the other Rangers had accomplished their task and it was time to seek replacements. Katherine gave her powers through to Cassie Chan. Then she left England to study ballet.

Trivia

 * She has an ellipse visor on her helmet as both the Pink Zeo Ranger and the Pink Turbo Ranger.