Quotes / Falsely Reformed Villain

Blanc: To think we ever believed you!—
Plutia: "Wait, I'm sure she can explain. You said you turned over a new leaf, right? So what's going on here?"
Linda: "Huh! Get real! I wiped my ass with your new leaf! I'm a natural born villain, see?"

—Hyperdimension Neptunia the Animation

♫ I admit that in the past I've been a nasty
They weren't kidding when they called me, well, a witch
But you'll find that nowadays
I've mended all my ways
Repented, seen the light, made a switch
True? Yes!♫

— Ursula, "Poor Unfortunate Souls"

♫It gets so lonely being evil
What I'd do to see a smile
Even for a little while
And no one loves you when you're evil...
I'm lying though my teeth!
Your tears are all the company I need!♫

— Voltaire, "When You're Evil"

SpongeBob: Well, uh, Mr. Evil Man Ray, sir, we can't do that.
Man Ray: Why... NOOOOOT?!
SpongeBob: Because, you're evil!
Man Ray: You mean, if I was good, then you'd let me go?
SpongeBob: Yeah, sure. Why not?
Man Ray: Then, uhh... in that case, I am good.
SpongeBob: Really?
Man Ray: Yes, really.
SpongeBob: Really really?
Man Ray: Yes, yes, really really!
SpongeBob: Really really really?!
Man Ray: YES, YES, ALREADY! I'M GOOD, I'M GOOD! Now, let me out of here! Or you'll suffer dire consequences!
SpongeBob: Well, that's good enough for me.

— SpongeBob SquarePants, "Mermaid Man and Barnacle Boy III"