"Guybrush" is Ben McKenzie, a performer, writer and game designer based in Melbourne, Australia. His favourite dinosaur is Stegosaurus, his favourite element is Helium, and he refuses to try and determine his favourite Pratchett book, though he admits to having a soft spot for at least a dozen in particular.
He's done many things, but the one most relevant to this wiki is probably Pratchat, a book club style podcast in which he and his co-host Elizabeth Flux are reading and discussing every Terry Pratchett novel, one a month, with guests. He also had a fanzine in the 90s in which he reviewed new Discworld books, among other things, and directed a student theatre production of Mort in 1998.
You can find out more about him at benmckenzie.com.au.
I'm tinkering with a few major additions which you can, if you like, see here: User:Guybrush/Testing