For those who haven't read the Stephenie Meyer novel The Host, the characters can be somewhat tricky to figure out, especially since most of them are controlled by an alien race known as Souls. To clear up some of the confusion, Open Road Films has debuted a new featurette, where Saoirse Ronan explains that her character Melanie Stryder has one of these Souls named Wanderer (a.k.a. Wanda) "inserted" into her. Although Wanda has a job to do for the Souls, she forms a unique relationship with Melanie. Take a look at this behind-the-scenes featurette that includes new footage and interviews with Saoirse Ronan and author Stephenie Meyer.