Racki the Wishmaker is the main villain of Regular Show Halloween special "Terror Tales of the Park V".
Benson rented Racki for the Halloween party in the park house. He shows anyone what happens if their wishes come true through visions but they usually have an cruel twist to it. He would make his eyes glow red and makes the person who's asking the wish eyes glow red, too. He showed his wish visions to Benson, Pops, and Hi Five Ghost, but when he does Rigby, he has everyone see his vision. After finishing Rigby's vision, he robs the park staff and tries to escape with the other wishmakers. When he tries to use the catapult to escape, he's too heavy to be launched further and he ends up crashing a few feet from the catapult. While the park staff laughs at his misfortune, Racki laughs at Benson because now he can't get his $500 security deposit back, result in Benson screaming "No!". It turns out that the entire episode was a vision for Benson who is at a Halloween store and he asked Racki on wishing to throw the best Halloween party ever. When the Halloween store worker asked how he likes it, Benson said it's terrible and he refuses to rent Racki if he can't get his security deposit back so he went to the streamer store instead. The store worker scolds Racki for scaring away another customer but Racki responds by telling him his boss should fire him which results in the store worker unplugging Racki.