Mr. Gristle is the secondary antagonist of The Boxtrolls
As one of Archibald Snatcher's gang, Mr. Gristle is basically the Gestapo and the attack dog of the group. Sadistic and cunning, he enjoys doing things that can chill people's spines. Mr. Gristle may speak in a few words, but he comments on every move he makes. Like his boss, he despises he Boxtrolls. He may also have some mental or sociological dysfunctions as he takes to his job like a raving mad psychopath, often shouting repeatedly what his more than volatile intentions are.