As a youth growing up in Casey Jones' neighborhood, Angel comes under the influence of a street gang known as the Purple Dragons. She quickly becomes involved in thefts as part of her initiation and soon finds herself fighting in a wrestling ring to become a full-fledged member. Casey comes to her aid when he and the Turtles infiltrate a Purple Dragon hideout and pull Angel off her path of delinquency. Angel then becomes a close friend of the Turtles.

Angel returns to the Turtles when her older brother goes missing during a construction job, which leads the Turtles to the Volpehart Building and an extraterrestrial creature that forces them to confront their own fear.

Angel also appeared at the Turtles' lair for Christmas. She and Raph tried to get April under the mistle toe for Casey.

Angel's most recent relation to the Turtles was serving as a message carrier after their lair was destroyed by Karai and the Foot.