While the puzzles themselves don't do much to impart personality into the game, the setting that they take place does. The game's story takes place in 1961 and it alternates between a TV game show and crime scenes. As a result, you get some interesting settings that have just enough detail when it comes to hair or clothing style to properly date the game.
Characters from the "always on" game show host to the show's Vanna White style model really go along way to set the stage of the game. Not only do the characters appear to fit the part, but some of the dialogue sounds about right as well. While there aren't a lot of characters in the game (primarily those two, the FBI agent you are helping and your opponent in the game show), they feel right. The game even adds a bit of stylized special effects into the mix by flattening out the actors some. For those familiar with Photoshop's Posterize tool, imagine that filter being applied over the actors.