Creating an actor
You can create an Actor through a Use Case Diagram, Class Diagram or a Modeler pane.
To create an actor through a use case diagram:
1. On the Use Case Diagram tab, click the 
Actor button, and then click on the diagram in free space.
Actor button, and then click on the diagram in free space.2. Type the name of the Actor, and then press the Enter key.
To create an actor through a class diagram:
1. On the Class Diagram tab, click the Actor button, and then click on the diagram in free space.
Actor button, and then click on the diagram in free space.2. Type the name of the Actor, and then press the Enter key.
To create an actor through a Modeler pane:
1. Locate the Package (or the Model) that is to own the Actor.
2. Right-click the owning Package (or the Model), and select > > > .
3. Type the name of the Actor, and then press the Enter key