Quotes & Sayings About Doppelgangers

I do not know which is more annoying, the real Goodfellow or the reflection."
"Well, considering they are one and the same," said a second, identical Grimalkin, materializing next to the first, "we should be thankful that they will be only one left when this is all over."
"Agreed. Two Goodfellows would be more than anyone in this world could take."
"I shudder to think of the implications."
"You are so not helping, Grimalkin!" the real Puck called, ducking beneath a savage head strike. "And we're not here to have tea with our evil doppelgangers! Shouldn't you two be trying to kill each other?"
The Grimalkins sniffed. "Please," they said at the same time. — Julie Kagawa

The real Harry thought that this might just be the most bizarre thing he had ever seen, and he had seen some extremely odd things. He watched as his six doppelgangers rummaged in the sacks, pulling out sets of clothes, putting on glasses, stuffing their own things away. He felt like asking them to show a little more respect for his privacy as they all began stripping off with impunity, clearly much more at ease with displaying his body than they would have been with their own. "I knew Ginny was lying about that tattoo," said Ron, looking down at his bare chest. "Harry, your eyesight really is awful," said Hermione, as she put on glasses. — J.K. Rowling

Doppelgangers:coming for your soul and your leftovers, — Sarah Rees Brennan

Exemplary work, Agent Fraser."
"Thank you, ma'am," I managed to say. I gestured vaguely in the direction of wherever she'd been injured. "How are you?"
"Passably well. Well enough to do whatever is needed. And yourself?"
"Uh, good. I'm good."
She seemed to expect more.
"And I'm ready to get this done," I added with enthusiasm. Jeez, I sounded like such a dork.
She gave me a sharp nod. "Commendable.[ ... ]"
[ ... ]
Ian lowered his voice. "I'm ready to get this done?"
I cringed. "I know. You've got one more job as my partner."
"What's that?"
"Save me from myself."
"Spawn and doppelgangers I can do, but saving you from yourself is too tall an order for any man. — Lisa Shearin