<p> There are six of them: heroines, heroes, wise elders, mad scientists, servants and monsters. One of the most fascinating and also endearing aspects of horror films is how they use these six clearly defined character types to portray good and evil. This was particularly true of the classics of the genre, where actors often appeared in the same type of role in many different films. The development of the archetypal characters reflected the way the genre reacted to social changes of the time. As the Great Depression yielded to the uncertainty of World War II, flawed but noble mad scientists such as Henry Frankenstein gave way to Dr. Nieman (<I>The Ghost of Frankenstein</I>) with his dreams of revenge and world conquest. This work details the development of the six archetypes in horror films and how they were portrayed in the many classics of the 1930s and 1940s.</p>