Barry Allen: Caitlin.
Killer Frost: I haven't heard that name in a long time.
Barry Allen: That is your name, isn't it? Your real name? Please, look... I know you. Don't do this.
Killer Frost: If you knew me at all, you would know that I hate the name Caitlin. I'm Killer Frost.
Read more Barry Allen Quotes
From: The Flash