Difference between Skin-Changing and Warging
First of all, Warging is a specific type of Skin-Changing, exclusive to targeting canine family. If you are slipping into an organism which is neither a dog nor a wolf, it's not warging.
That being said, Others are still shrouded in mystery in the books. We do not know their powers' nature or extent of their powers.
Based on my own speculation rooted in the canon, I'd say the answer is no.
There is no instance of Skin-Changers possessing multiple skins simultaneously. So it is unlikely that a couple of Skin-Changing Others are inside hundreds of thousands of Wights.
It is more like reanimation with an evil spirit rather than actually slipping into the body of the dead men.
The Art of Necromancy animates the Wights, not Skin-Changing. As Melisandre, someone well-versed in Dark arts said:
Necromancy animates these wights, yet they are still only dead flesh. Steel and fire will serve for them. The ones you call the
Others are something more.
But Melisandre has been proven wrong before about many things.
Another thing to note is, Skin-Changers when in their animals' skin, can feel the same pain. Like Varamyr felt burning pain/sensation when his eagle was burnt by Melisandre or how he felt when he was inside his she-wolf and she gave birth to pups or how he felt when his she-wolf was mounted by his other wolves.
Varamyr had died nine times before. He had died once from a spear thrust, once with a bear's teeth in his throat, and once in a wash of
blood as he brought forth a stillborn cub. He died his first death
when he was only six, as his father's axe crashed through his skull.
Even that had not been so agonizing as the fire in his guts, crackling
along his wings, devouring him. When he tried to fly from it, his
terror fanned the flames and made them burn hotter. One moment he had
been soaring above the Wall, his eagle's eyes marking the movements of
the men below. Then the flames had turned his heart into a blackened
cinder and sent his spirit screaming back into his own skin, and for a
little while he'd gone mad. Even the memory was enough to make him
Or how Bran feels blood in his mouth when his wolf hunts.
"They do," Bran said with sudden certainty. "They dream tree dreams. I
dream of a tree sometimes. A weirwood, like the one in the godswood.
It calls to me. The wolf dreams are better. I smell things, and
sometimes I can taste the blood."
Or how Jon feels hunger felt by his wolf.
it was a hunger inside him, sharp as a dragonglass blade. A hunger...
he could feel it. It was food he needed, prey, a red deer that stank
of fear or a great elk proud and defiant. He needed to kill and fill
his belly with fresh meat and hot dark blood. His mouth began to water
with the thought.
It was a long moment before he understood what was happening. When he did, he bolted to his feet. “Ghost?” He turned toward the wood,
and there he came, padding silently out of the green dusk, the breath
coming warm and white from his open jaws. “Ghost!” he shouted, and the
direwolf broke into a run.
A Storm Of Swords: Chapter 79
White Walkers, like all living things, feel pain. We saw it when Sam stabbed one, the White Shade screamed with pain.
Do it now. Stop crying and fight, you baby. Fight, craven. It was his
father he heard, it was Alliser Thorne, it was his brother Dickon and
the boy Rast. Craven, craven, craven. He giggled hysterically,
wondering if they would make a wight of him, a huge fat white wight
always tripping over its own dead feet. Do it, Sam. Was that Jon, now?
Jon was dead. You can do it, you can, just do it. And then he was
stumbling forward, falling more than running, really, closing his eyes
and shoving the dagger blindly out before him with both hands. He
heard a crack, like the sound ice makes when it breaks beneath a man's
foot, and then a screech so shrill and sharp that he went staggering
backward with his hands over his muffled ears, and fell hard on his
ASOS: Samwell I
But we do not see White Walkers screaming when their minions are burned or hacked, which means they aren't feeling the pain felt by their skin, which in turn implies they aren't inside the dead skin at all. Or it could be just because their skin is dead, it feels no pain, therefore the Walkers feel no pain.
So Spake Martin...Er or didn't spake
George R.R. Martin has however refused to confirm if Others control their minions like Skin-Changers control their skins.
So, I asked a bunch of questions that got an "excellent cheese"
response from George, who was at least amused enough by our
observation that he used cheese to change the subject that he went on
to use cheese as the only subject change...
Do The Others warg into the bodies of the dead the same way that wargs
go "into" the bodies of animals?
Since Author replied with Cheese, he refused to confirm it but he didn't rule it out either. So it may be possible that George has a similar idea about how their powers work.
So until His Grace GRRM decides to tell us more about it, we do not know for sure.
- Differences between Wights and White Walkers