He is voiced by Fred Stoller.
Chuck is a sympathetic villain who lives in his mother's basement. He often spends his time making or eating sandwiches, which is his main gimmick. He would also play video games. however he often tries to do evil things to show people that he can be just as evil as the other antagonists of the show. His main weapon is a gun which fires condiments, such as mustard, or ketchup. These condiments would often make it difficult for WordGirl to escape from. His other main weapon is a humongous sandwich presser, which he has threatened to use on the town on ocassions.
He also has a hard time saying words, and would inadvertently forget words or even the passwords to his machines. He mostly commits minor crimes, mostly robbing sandwich-related items. He tried to steal money or jewelry, however, he was always pestered about his name and that he does not steal any sandwiches. And, because of his adoration of sandwiches, he gets furious at people who dislike them.
Also, unlike the other antagonists, he seems to be mostly nice towards WordGirl, and even helps her at times. However, in the episode "A World Without WordGirl," it's been shown that without her constantly foiling him, he would be ruling the city. He has a sandwich for a head, and it appears to be an inherited trait since his brother Brent also has this feature. However, it has not been shown if his mother also shares this trait, since she's never seen.