Alias does a great job of recreating the show through both its audio and visual presentation. All of the major characters from the show are present, although there are a few rough spots. Most of the show's characters look like they do in real life, but not all of them. In particular, Sydney, the game's main protagonist, doesn't look that much like Jennifer Garner. The resemblance is close enough that you can tell who she is, but not without an eerily fake stiffness. The stiffness also carries over into animations, especially Sydney's running animation, which is reminiscent of the "diaper run" animation found in Syphon Filter. Although all of the characters may not look exactly like they do on the show, all sound the same. All of the show's stars, including Jennifer Garner, provide the voices for the characters. The acting is generally good and adds a nice little bonus.
The game's soundtrack features themes from the show as well as some licensed tracks. When combined with the voice work, this makes Alias a game you won't want to mute and helps to sell the experience.