In the epic Ramayana of Valmiki whose role displayed obedience or disobedience and why?

Ramayana is a book having scores of characters and most of
these characters display high degree of obedience. This Applies also to the demons. For
example, Kumbhakarna, younger brother of
Ravana, believes that it was unwise for Ravana
to act against Rama, yet obeying the orders of
Ravana, he joins him in his war against
Rama.

I can think of one significant
incident of disobeying described in Ramayana. But this is just an exceptional behaviour
of the character, rather than regular disobedient nature. In this incident,
Lakshmana instructs Seeta to not to cross a
line drawn by him, when he has to leave her alone in their hut in the forest, to rush in
aid of Rama. However Seeta is persuaded by
Ravana, disguised as a ascetic, to cross the line. This makes it
possible fro Ravana to abduct
Seeta.

If it is a matter of deciding
who among all the character was most obedient, I would choose Rama.
He has displayed obedience to his father, his mother and step mothers, and his
teachers.

Hanuman, definitely
represents the finest example of devotion to the all mighty Lord. However, devotion,
loyalty and obedience are not synonyms. While I cannot think of
Hanuman ever being disobedient to Rama.
However, I do not think Ramayana present any incident which emphasizes his obedience in
circumstances where it was difficult to decide the right course of
action..