Arnold Bernid "Casey" Jones is a fictional character that appears in Teenage Mutant Ninja Turtles comics and related media. Created by Kevin Eastman and Peter Laird, he first appeared in the one-shot, Raphael: Teenage Mutant Ninja Turtle (April 1985). Like the turtles, Casey Jones is a vigilante, and was created as a parody of vigilante characters that were popular in comics at the time. Casey usually has long dark hair, wears an ice hockey mask and cut-off biking gloves, and carries his weapons in a golf bag over his shoulder. His weapons include various sports equipment, such as baseball bats, ice hockey sticks, golf clubs, cricket bats, and tennis rackets. He becomes a love interest of April O'Neil. The character has been featured in various adaptations, and has been portrayed by several actors. He was first voiced by Pat Fraley in the 1987 series, Marc Thompson in the 2003 series, Chris Evans in the 2007 film, Josh Peck in the 2012 series, Zelda Williams as a female version in the 2018 series, Haley Joel Osment in a film adaptation of the 2018 series, and has been portrayed in live action by Elias Koteas in the 1990 and 1993 films and by Stephen Amell in the 2016 film. Comic books Mirage Studios In the original Mirage series, Casey first appeared in the Raphael one-shot, by Kevin Eastman and Peter Laird. Casey was introduced as a violent, hot-tempered vigilante whose anger concerned even Raphael. The turtle stopped Casey from killing some muggers, causing an initial conflict between the two. This clash was quickly resolved, and Casey and Raphael became fast friends. Later, Casey came to the turtles' aid when they are attacked by the Shredder in April O'Neil's home. The vigilante even took the turtles to his grandmother's old farmhouse in Northampton, cementing his place with the group. In the Mirage series, Casey is extremely violent, even more so than Raphael, but he mellows throughout the course of the series. In Shades of Gray, Casey accidentally kills a teenager who tried to mug him. The incident sent him into a drunken spiral, damaging his relationship with April O'Neil. His initial homicidal tendencies are especially present in his first appearance, although he never actually murders anyone in that instance. During the three-part episode City at War, Casey leaves the farmhouse and begins to drive to Los Angeles, planning to find April, but instead