Whether it be Ali G, Borat or Bruno, Sacha Baron Cohen’s movies are defined by their characters. The main character of “The Brothers Grimsby,” a 2016 film directed by Louis Leterrier, is Nobby, played by Cohen, a potbellied, working-class buffoon who lives the poor Englishman’s dream with his nine rowdy kids, with names such as Skeletor, Django Unchained and Stella Artois, and his lovely wife. Nobby is disgusting, rowdy and irresponsible yet loving and good intentioned. He might be “low class,” but he is very human. The idea of this character had the potential to be great, but the film does not take sufficient satirical risks as Cohen’s other films…