Corey Burton credited as playing...
Black Knight • Ghost of Geronimo • Witch Doctor
- Mastermind: [appears behind Scooby-Doo] Ah, the infamous Scooby-Doo. Allow me to introduce myself. I am... the Mastermind!
- [the thunder rumbles]
- Mastermind: I'm the reason you're here.
- Scooby-Doo: You are?
- Mastermind: I'm the one who made Professor Graham disappear.
- Scooby-Doo: You did?
- Mastermind: I'm also the one who's brought back all of your old foes.
- Scooby-Doo: Rut why?
- Mastermind: That's a mystery you will never solve. And one more thing: I'm the one who's kidnapped all your friends!
- Scooby-Doo: Velma!
- Velma: [in a suspended cage] Scooby-Doo!
- Mastermind: See if you can get past this fiendish fright. You remember the Black Knight!
- [evilly laughs and vanishes]
- Scooby-Doo: Velma! He risappeared!
- Velma: We'll worry about that later, Scooby! Watch out, it's the Black Knight!
- Scooby-Doo: Oh, no!
- Black Knight: [laughing evilly] Ha ha ha ha ha ha ha ha ha ha!