What are Mildred's and Faber's major role in the book?(2 each)

Mildred is Montag's wife of ten years epitomizes the shallowness and complacentness of society that Montag comes to despise. Millie forgoes real happiness to immerse herself in the technological gadgets of the age, such as her television walls and seashell radios, which allow her a constant escape from reality.

Professor Faber is an aging intellectual in a world with no place for such people, Faber greatly disapproves of the dehumanized, oppressive society in which he lives. However, Faber feels it is safer to live discreetly rather than protest or attempt to change the world. Faber and Montag first met years ago in a park and after a long discussion about books, gave Montag his contact information. After Montag is taken in by the magic of books, he seeks Faber out and together, the two men try to work together against their oppressive society.