In order to create a Staff to your VOD (also known as Cast of Characters), you need to follow this simple steps: 

1) Go to > Content > Staff: Create the cast you want to have for your content. It is very important that you add a good image for the Avatar version. This way your users will recognize your staff.  Click Save. 

2) Create a rol: Here you can create whatever rol you want. Could be an Actor, a Producer, a Presenter, a Host, you name it. Just create them and they will be added to your video service. 

3) Associate to your content: And finally, you need to associate to your content. Just go to your Video on Demand content, and add staff with the roles you created. Simple as that.