In the book "Keeper" by Mal Peet, The character archetypes are evident. The author makes it so that the reader can identify the following archetypes "the mentor, reluctant hero, herald, and the shapeshifter".

                          "The mentor"  would have to be the keeper. The keeper is a wise man who trains El Gato to be the best goalie in the world. The mentor is the "character who aids or trains the hero, usually wise". This definitely fits the keeper, he is a smart man who doesn't really joke around and knows what he's doing. The keeper doesn't waist El Gato's time when training.

                            Another archetype that is clear in the book is the "reluctant hero" that is portrayed by El Gato. When El Gato is first introduced to the keeper, El Gato immediately thinks "No" to being a goalie. Then the keeper starts taking shots on El Gato. Soon El Gato's abilities are discovered. The definition of reluctant hero is "at first refused the adventure and denies his own ability". El Gato at first refuses the challenge of working on being a goal keeper and denies his amazing keeper abilities.

                              The keeper would hold the archetype of the "herald". He is the one who puts El Gato on the journey of becoming the best goalie in the world and teaches him to move past the obstacles that stand in El Gato's way. The Herald is the one who "announces the challenge which begins the hero on his story journey; the person or piece of information which starts the adventure"

                               The last archetype that I found was the "shapeshifter" which belongs to again the keeper. The keeper can be moody and makes El Gato  struggle to understand him. The archetype means "changes role of personality, and is hard to understand; alliances are uncertain and the sincerity of his claims are questionable; brings suspense to story".

                              In this story their are not that many characters but the characters
that their are the archetypes are obvious .