How are Hester Pearl Dimmesdale and Chillingworth affected by The Scarlet Letter?

The scarlet letter ruins Hester's social life. She is humiliated by those she once thought of as friends and excluded from all social activities. It also provides a constant reminder of the guilt she suffers from.
It seems to bring out a devilish side to Pearl. She teases her mother about it constantly and refuses to go near Hester when it is removed for a few minutes. Because we never see what Pearl is like without the scarlet letter it is difficult to discern how exactly she is affected.
Dimmesdale's health fails as a result of the letter. His share of the guilt sucks the life out of him. It causes him to strain his body doing good deeps as he tries to make up for his sin.
Chillingworth gets an evil pleasure from seeing the scarlet letter on Hester. It makes him feel as if his revenge against her has been exacted. However it also makes him feel like Dimmesdale has yet to be punished. He is driven to an evil frenzy in his efforts to be a malicious influence in Dammesdale's life.