Billy has matured since he was ten years old. Now, in his twenties, he's not quite as spastic, but still quite dumb. What he lacks in book smarts, he makes up for in emotional intelligence. That doesn't stop him from being annoying and obnoxious at times! He's still a goofball, and when paired up with Dib, it's a dangerous combination. Dipper finds them irritating sometimes.

I've always felt like Billy would be the least "loserboy" out of the three of them. Although he still has similar geeky interests, he doesn't hold the same desperate obsession with the paranormal that the other two do. He's been friends with the grim reaper since he was eight years old, so it's all normal to him! He spends less of his time actively pursuing the paranormal in his older years, (the paranormal tends to simply appear in his life) and more time with Mandy, steadily falling into domesticity with her, becoming her unconventional trophy boyfriend. However, he's still along for the ride, and happy to participate in whatever supernatural (or mundane) hijinks Dipper and Dib have in mind. 

I know it's quite the tall order: asking someone to do their best Richard Horvitz impression. So I'll try to take some of the pressure off - I’m not looking for anything exact or perfect to the original! I'd only ask for you to check out some Billy clips, as well as some scenes with his dad, in order to get a good vibe for his character. (Billy's dad "Harold" has the same voice actor, and I based my older Billy design off of him as well. Since he takes after his dad, Billy would probably sound similar to him.) Just do your best to embody the character! As always, creative interpretation is great. 

Here’s some clips that might help! This one is a compilation of Billy moments. This one is a compilation of moments with his dad. Here's another one with Harold: 5:39 on this video is akin to what Billy's “tough guy voice” would sound like, although he doesn’t need to talk as slowly.

Note: I'm 100% ok with, and encourage improvisation with these lines. They don't need to be exact, be creative if you want! If you are feeling up for it or are inspired, improvise your own lines too! Come up with whatever you like, whatever you think Billy might say. I'm super excited to hear your audition.