Display multiple people from a people picker control in InfoPath

If you want to use a Calculated Value control in InfoPath to display all the display names of users from a people picker control, it needs to be embedded in the Repeating Section of the Person control you're using.

The easiest way to do this is to drag the control into your form, which will bring in textbox within a repeating section.  Then right click the control and change the control to a calculated value.  Clean up the control a little bit and you'll be all set!