I just had the thought- with the little quotes that pop up in the youtube videos, should I start using the characters' handwriting for those?
Here's Marlowe's! His is on the messier side, which I feel suits him. It's a very different kind of messy than, say, Cyril's, though.
To install it, simply download and double click on the file. This should open the installer. Just click install, and the font should then be usable just about anywhere!
If, for some reason, the installer doesn't pop up when you double click on the file, you can just go to your fonts folder and manually move the file over to there, and that should give you the same result.
If you want to use the font on a mobile device (phone, tablet, etc) you may need an app to install it, but there are plenty of tutorials online for getting that set up.
Enjoy!