Violetta saves the world!
Also, unless I'm much mistaken, she told Gil and Tarvek to stop flirting with each other. Menage a trois, is menagable?
Agatha in the penultimate panel is very much Scary Madgirl Spark Agatha.

"As for not dooming the earth - well - that's more of a lifetime goal, actually" might be too long for a thread title, but it does sum up Agatha's lifestyle choices pretty well.