Dipper's Guide to the Unexplained - Mailbox

Summary

Dipper and Soos stumble upon a mailbox in the middle of the forest and make it their mission to discover who (or what) picks up the mail left inside.

Guest stars

• Jason Ritter as Dipper Pines (voice)
• Kristen Schaal as Mabel Pines (voice)
• Alex Hirsch as Soos Ramirez (voice)