April O'Neil

April O'Neil is a character in the Teenage Mutant Ninja Turtles franchise.

History
In her original appearance, April was a biology student who got a job as a lab assistant at Stockman Research to pay off her student debt and to get some experience in her field. One day, she discovered that her employer, Baxter Stockman, was using his research to exploit the city, blackmail politicians and hold the public ransom. Because of her discovery, Stockman set his robot minions on her. April escaped to the sewers, pursued by the robotic "mousers." Eventually, she was rescued from the mousers by four mutated turtles, and quickly found that they weren't nearly as monstrous as they looked. Ever since, she has been a close ally of the Ninja Turtles, acting as their insider to the human world, going places where they would stand out. More importantly, April has been like a big sister to the turtles, adding to their ragtag family. Later on, she would become romantically involved with the turtles' other human friend, Casey Jones.

In some media, April is portrayed as a news reporter. Usually, her meeting with the turtles plays out similarly to her original incarnation, where she gets in too deep with dangerous business and crosses paths with the Ninja Turtles.

Appearance
Across the different Ninja Turtles media, April's physical appearance, age and style of clothing varies. However, her basic design always stays the same, being a beautiful young woman with light skin, blue eyes and red hair.

Even across all of the different media, her swimwear varies greatly.