Nurse Joy is responsible for the well being and care of all Pokemon. There are countless Nurse Joys in Pokemon Centers across the regions. Every Nurse Joy is related in some way (sisters, aunts, mothers, cousins). Nurse Joys usually have Chansey or Blissey to assist them. All Nurse Joys are kind and honest people.
In the English dub of the Pokemon anime, Nurse Joy was first voiced by Megan Hollingshead.
When Megan Hollingshead left 4Kids Entertainment after the 6th season of Pokemon the role was recast and Erica Schroeder voiced Nurse Joy.
When 4Kids lost the license for the Pokemon anime to Pokemon USA all characters were recast for the 10 year anniversary special Mastermind of Mirage Pokemon. In this special Nurse Joy was voiced by Diane Stillwell.
In the English dub version of the anime by Pokemon USA, Nurse Joy is voiced by Michele Knotz for the final saga of Battle Frontier and for all of Diamond and Pearl.
For Best Wishes Nurse Joy is voiced by Alyson Leigh Rosenfeld.