Ashmoon

Ashmoon was a young healer when Featherstar became leader of ThunderClan and then quickly became the only healer of the clan when dogs killed her mentor after Featherstar's ceremony (or so her leader claims)

She watched the Clans she loved being taken over and controlled by Featherstar, learning early what happens when she goes against her leader.

When Raggedkit was born she went on to teach him how the clans used to be, showing him a mother's love when his own only showed obsession.

And by doing that, might be the reason he grew up to free the forest of his mother.