The primary goal of the quiz 'There Are 36 Harry Potter Characters In This Quiz — I'd Be Surprised If You Can Name 15' is to challenge participants to identify as many characters from the series as possible, with a goal of naming at least 15.

This quiz is designed to be challenging, aiming to surprise even avid 'Harry Potter' fans with its difficulty, as it requires knowledge of 36 different characters.

Taking the quiz 'There Are 36 Harry Potter Characters In This Quiz — I'd Be Surprised If You Can Name 15' is a fun way to test and improve your knowledge of the Harry Potter universe, seeing if you remember the less obvious characters.

To do well in the quiz 'There Are 36 Harry Potter Characters In This Quiz — I'd Be Surprised If You Can Name 15', it's helpful to recall not just the main characters but also those from subplots and the extended universe.

While prior reading of the 'Harry Potter' series is beneficial and enhances the enjoyment of the quiz 'There Are 36 Harry Potter Characters In This Quiz — I'd Be Surprised If You Can Name 15', it is not strictly necessary if you're familiar with the characters from other media.