Duke Habberman is a sweaty wrestler who is friends with Freddie and enjoys meat. He made his first appearance in the episode, iLike Jake, but his name wasn't revealed until his first "real" appearance in a later episode, iHatch Chicks. He also appears to love animals. When he told Freddie to help him with the refrigerator, he says "I love animals". Duke also makes a cameo appearance in iSpy a Mean Teacher, in which he was the first person to cheer about seeing Ms. Briggs on iCarly. He had one line, "Hey, it's Ms. Briggs," and then everyone began to cheer. Duke does not make another appearance.