What are the names of important characters in Heidi by Johanna Spyri?

The protagonist is Heidi, a Swiss girl who lives with her aunt, Dete (also called "Detie"), in the mountains. Her aunt regards Heidi as an imposition, as she has to raise Heidi after her sister and brother-in-law die. Dete takes Heidi to live with Heidi's grandfather, Alm-Uncle, who is the father of Heidi's father. Her grandfather lives in Dorfli, where he maintains his distance from others and grazes livestock ("Alm" refers to the mountain ranges where he grazes his flock). Alm-Uncle grows to love Heidi, and she also gets to know Peter, a goatherd, and Peter's blind grandmother, Bridget (also called "Grannie"). 

Heidi later goes to Frankfurt to work as a companion to Clara Sesemann (spelled "Klara" in German), a sick girl who can't walk and who lives with her father, Mr. Sesemann. Heidi charms Clara with her friendliness and country manners. Fraulein Rottenmeier, Clara's housekeeper, is a strict woman who dislikes Heidi. Doctor Classen diagnoses Heidi with homesickness and sends her home to the mountains.