Sara Hill

Horridus aka Sara Hill is a superheroine that crossed over from Image's comic series Savage Dragon and encountered the turtles. And also was briefly Mikey's girlfriend.

History
Meggan Tully, while dating George Hill, is abducted by aliens and impregnated. The event is removed from her memory and she is returned to her car. George believes the child is his and marries Meggan.

When the unusually shaped child is born, Meggan and George chain her up in the basement, with only a television set for company. They believe the child to be a punishment for their pre-marital sex.

After years of guilt and suffering, George and Meggan Hill commit suicide and Sarah is found by the paper delivery boy. The local police are afraid to enter the basement and call in an officer - called Dragon - from the Chicago Police Department, who releases Horridus and takes her to his station house.

Freak Force

CPD's Captain James Stewart is extremely enthusiastic about assembling a superhuman strikeforce for his department and recruits Sarah Hill, giving her the codename Horridus, to his "Freak Force" program. There, she meets Dragon, Rapture, Barbaric and Ricochet who at the time is too young to join the department. Due to restrictions imposed by the local government and their police superiors, the 'freak' officers quit the police force and become bounty hunters, allying themselves with the veteran hero Superpatriot and the new Mighty Man.

Freak Force fights a number of menaces, ranging from the supervillains such as the Fantastical Force, the Covenant of the Sword, the Throwaways, Master Atom, Bludgeon, their own evil clones and the Frightening Force, the extraterrestrial Martians, Matrix Swarm and Cosmic Cops, and other heroes like Badrock, the WildC.A.T.S. and Cyberforce.

They even fight their own government; at one point Horridus assists in taking down a secret prison for super types.

Eventually, Horridus and most of her teammates join the United States government's new superteam to replace Youngblood - presumed dead from the Martian attack - the Special Operations Strikeforce. Horridus gains more worldly and fighting experience.

For a time, Horridus lives with Rapture. However, Horridus still hasn't come to terms with the fact she is very sharp; at one point she destroys Rapture's waterbed, after which Horridus briefly meets the Teenage Mutant Ninja Turtles, whom she considers cute. The character had many appearances in the Turtles' own Image comics, developing a relationship with Michelangelo.