Powerpoint with accompanying handout with 8 common character roles in a story, including Protagonist, Antagonist, Sidekick, Skeptic, Tempter, Mentor, Emotional, and Logical characters.
Powerpoint provides tons of pop culture examples of these roles from movies students are familiar with. (Harry Potter, Shrek, The Hunger Games, Twilight, etc.)
To keep students engaged in the powerpoint, all they have to fill out on their handout is the examples they'd like to have to refer back to. When I did this, students also generated many more examples than what I had included on the powerpoint. It was great!