Happy Time Harry
From Aqua Teen Wiki, your fan-created Aqua Teen Hunger Force resource.
One of the darkest characters on the show. Happy Time Harry is a doll....with red dancing glitter shoes and action bills. He also has a missing hand that has a switch blade hidden inside it. He also had his liver removed.
In Dumber Dolls, after Harry convinced Jiggle Billy to commit suicide, Frylock threatened to kill Harry, but Shake announced that's what he wanted, so he ended up being chucked of a cliff by Shake. One would assume that Happy Time Harry was dead, however, he reappeared on The Last One as one of the villains summoned to the meeting.