Barry: Tell me who he is.
Killer Frost: I'll never tell [taunting]. You're going to be so surprised when you find out.

Barry Allen/Flash, Dr. Caitlin Snow/Killer Frost
The Flash Season 3 Episode 19: "The Once and Future Flash"
The Flash
Related Quotes:
Barry Allen/Flash Quotes, Dr. Caitlin Snow/Killer Frost Quotes, The Flash Season 3 Episode 19 Quotes, The Flash Quotes
Added by:

The Flash Season 3 Episode 19 Quotes

Barry: Caitlin, you can fight this.
Killer Frost: I know. But I don't want to.

Iris: I need you to make me a promise, okay? If things don't go our way. If Savitar kills me...
Barry: He won't.
Iris: If he does, Barry--
Barry: He won't.
Iris: If he does, Barry, promise me that you will be there for my dad. Don't let him push Cecil away. Don't let him spiral out of control. Make sure that him and Wally--
Barry: Stop. We're not going to talk about this. You're not going to die. I told you. I have a plan.
Iris: Barry, I need you to promise me, okay? I'm being serious. Promise me. Promise me you're going to make sure my dad is okay.
Barry: I promise.