Throughout cinema history, the sidekick has been an integral role in many different genres. This character may not be the one that saves the day and gets the girl, but often they will steal the show and can provide much more than occasional light relief (sometimes all a sidekick is used for). The hero is usually a character that the audience looks up to, but the sidekick is one that they relate to and usually possesses valuable qualities such as loyalty, bravery and wisdom, but they are often also vulnerable and therefore have the most depth.
11. Garth Algar — Wayne’s World
The films may be called Wayne’s World, but it is Wayne’s goofy and loveable friend Garth that steals the show. While both Wayne and Garth bring non-stop humor to both films, and they both help to drive the plot forward, it is Garth that delivers the more memorable and quotable lines. This includes lines such as “Did you ever find Bugs Bunny attractive when he put on a dress and played a girl bunny?” and “She makes me feel kind of funny, like when we used to climb the rope in gym class,” plus brilliant moments including a bad case of stage fright and an unforgettable Foxy Lady routine. Unlike most sidekicks, Garth is neither brave nor intelligent (which adds to his charm), but he is fiercely loyal to Wayne and ultimately this loyalty helps the two to succeed and form a classic (and highly quotable) cinema duo.
http://filmgarb.com/characters/garth-algar/ Source: Filmgarb.com