Whenever it's asked, people always say Saten Twist should be voiced by Crieg Armstrong. The voice of Dan from Dan Vs..

I sometimes say Aaron Paul would also work. From Breakng Bad and BoJack Horseman..

Who you think could voice my verison of Glaze?

Twilight Sparkle (locked in cave): Hello? Is anyone there?

Twilight Sparkle: Where am I?

Princess Cadance/Queen Chrysalis: The caves beneath Canterlot, once home to greedy unicorns who wanted to claim the gems that could be found inside. And now, your prison.

Twilight Sparkle: Help! Help!

Princess Cadance/Queen Chrysalis: [laughing] It's no use. No one can hear you. And no one will ever think to look for you, either. Most ponies have forgotten that these caves even exist, which is why they are the ideal place to keep the ones who try to interfere with my plans. [laughing]

Twilight Sparkle: Plans? What plans?!

Princess Cadance/Queen Chrysalis: The plans I have for your brother, of course.

Twilight Sparkle: Don't you dare do anything to my brother, you... YOU MONSTER!

Princess Cadance/Queen Chrysalis: Only way to stop me is to catch me! [laughing] Over here! [laughing] Nope, over here![laughing][glass breaking, Real Cadence is revealed.

Twilight Sparkle: YOU! (charges)

Princess Cadance: No! Wait! Please! Twilight, it's me! Please, you have to believe me. I've been imprisoned like you. The Cadance who brought you down here was an

Sparkle: Likely story!

Princess Cadance: (does song from their childhood)

Sparkle: You remember me!

Princess Cadance: Of course I do. How could I forget the filly I love to sit for the most?

Queen Chrysalis: [laughing]

Twilight Sparkle: We have to get out of here. We have to stop her!

Fake Cadence: [heard laughing, in a dramatic way]

Added seen.

After the song, Princess Cadance/Queen Chrysalis gets a knock on her door.

Princess Cadance/Queen Chrysalis: (rudely) What?

Saten: Hey.. I have to say. I don't like the way you turned everyone on Twilight. You could of handled that better.

Princess Cadance/Queen Chrysalis: She was gonna ruin it.

Saten: Well, I think there's something off about you. In fact I-

Princess Cadance/Queen Chrysalis: Wanna see dirty pictures of me?

Saten Twist: ... I do.

Princess Cadance/Queen Chrysalis: (gives him envolope)

Saten Twist: (lloks though) Wait. These are just empty papers, what gi-

Princess Cadance/Queen Chrysalis: (shoots green spell at him, hynotizing him).. Now.. Everything is fine.

Saten Twist (robotically): Everything is fine.

Princess Cadance/Queen Chrysalis: You will go now.

Saten Twist (robotically): I will leave now (leaves).

AJ and Rarity find Saten.

Rarity: We been looking everywhere for you.

Saten Twist (robotically): Everything is fine.

AJ: Okaaay. But we need to get you seated.

Saten Twist (robotically): Everything is fine.. I will go now.. (leaves).

AJ: (looks at Rarity in confusion).

Rarity: (shrugs)