Gotham, Season 4

[Returning to his bunker, Jeremiah finds a package labeled "From Wayne Enterprises". He opens it to reveal a jack-in-the box, which sprays his face with some of Jerome's specialized gas]

Jerome Valeska:
[recorded, cackling] Hello, brother. Didn't think you could get rid of me so easily, did you? See, my days were numbered, but you... Oh, you can continue on for me, be my ultimate revenge! [Jeremiah begins to stagger around the room, coughing and knocking things over] So... calm yourself. Don't fight it. [Jeremiah clutches his head and screams] Breathe it in. This gas was a special mixture I had made, just for you. Something to finally set you free. It's time to have some fun!

[Jeremiah straightens, clutching his hair and laughing manically; his skin has been bleached white, his lips are blood-red and his eyes have turned green]

Jerome Valeska:
[recording] Burn it down, brother. Burn it all down!