Kristen Schaal credited as playing...
Mabel Pines
- Dipper Pines: Go! Mabel, press the red button! Shut it down!
- Grunkle Stan: No, you can't! You gotta trust me!
- Mabel Pines: Grunkle Stan,
- [crying]
- Mabel Pines: I don't even know, if you're my grunkle! I wanna believe you, but...
- Grunkle Stan: Then listen to me. Remember this morning when I said I wanted to tell you guys something?
- Computer: T-minus twenty seconds.
- [Mabel prepares to push the button]
- Grunkle Stan: I wanted to say that you're gonna hear some bad things about me, and some of them are true, but trust me. Everything I've worked for, everything I care about, it's all for this family!
- Dipper Pines: Mabel, what if he's lying? This thing could destroy the universe! Listen to your head!
- Grunkle Stan: Look into my eyes, Mabel! You really think I'm a bad guy?
- Dipper Pines: He's lying! Shut it down NOW!
- Grunkle Stan: Mabel, please!
- Computer: Ten. Nine.
- Mabel Pines: [looks at Stan] Grunkle Stan...
- Computer: Six. Five.
- Mabel Pines: [lifts hand] I trust you.
- Dipper Pines: [while watching a security tape showing a man in a hazmat suit carrying large metalic containers into the Mystery Shack] Oh, no, Stan! You didn't!
- Mabel Pines: Don't panic! That can be anyone in that suit!
- Grunkle Stan: [In the video. Drops a container on his foot] AH! Hot Belgian waffles!
- [pauses]
- Grunkle Stan: Wait. I'm alone! I can swear for *real*! SON OF A...!
- Dipper Pines: [fast-forwards the video] That's him alright...
- [final lines]
- Dipper Pines: What? Who is that?
- Grunkle Stan: The author of the journals... My brother.
- Mabel Pines: Is this the part where one of us faints?
- Soos: [giggles] I am so on it, dude!
- [faints]