The Lord of the Rings: The Rings of Powerhas had a lot of room to play in Middle-earth.
Tolkiens books, but instead builds out the Second Age of Middle-earth based on Tolkiens various writings about it.
This has given showrunners J.D.

Sam Hazeldine as Adar on ‘The Lord of the Rings: The Rings of Power.'.Ross Ferguson / Prime Video
But Adar was a totally unique invention.
Adar presented himself not as the orcs overlord, but as their father figure.
They cant possibly understand how bad its going to be if they are ruled by Sauron.
Ross Ferguson / Prime Video
Adar also connectsThe Rings of Powerto TolkiensThe Silmarillion.
One reason he disdains Sauron is that he knew the previous Dark Lord.
It was Morgoth, Saurons mentor, who originally transformed Adar from an elf to an orc.
Who has respect for their former boss unqualified son?
Alas, the same trick didnt work twice.
Before Adar could kill Sauron a second time, he was struck down by his own children.
What makes the character so interesting is the sense of responsibility he has to his children, Hazeldine says.
But there’s the argument that sentient beings should not be killed simply because somebody else doesnt like them.
Adar believes that the orcs are not just sentient beings, who are capable of more than simply evil.
I talked about this with J.D.
and Patrick, that perhaps left to their own devices, the orcs would just be killing each other.
Theyre unruly, to say the least.
But with a leader who showed them care and love, perhaps they can learn to be something more.
In the end, Adars project failed because he still wanted to use the orcs for violence.