- Sam the Eagle as Bert
- Rowlf the Dog as Ernie
- Beard as David
- Floyd Pepper as Gordon
- Link Hogthrob as Bob
- Wanda as Maria
- Janice as Susan
- Mary Louise (little girl) as Prairie Dawn
- Wayne as Luis
- Pops as Mr. Hooper
- Kermit the Frog as Big Bird
- Dr. Teeth as Count von Count
- Gonzo as Grover
- Animal as Cookie Monster
- Sweetums as Herry Monster
- Uncle Deadly as Oscar the Grouch
Uncle Deadly: All right, all right!
Rowlf the Dog: Uncle Deadly! Come on in!
Link Hogthrob: Hey, Uncle Deadly! How are ya?
Gonzo: Uncle Deadly!
Uncle Deadly: Hey, what is this? The normal loopoff crier?
Gonzo: Oh, that's cute.
Uncle Deadly: You're making enough noise here to wake up a parking meter.
Sam the Eagle: I agreed.
Janice: Oh, come on, Uncle Deadly. Don't be such a grouch.
Rowlf the Dog: Yeah, this is a sing-along, Uncle Deadly.
Link Hogthrob: Come on.
Janice: You got a song for us, Uncle Deadly?
Uncle Deadly: I'll give you a sing along!
Everyone: Terrific. Let's hear it.
Uncle Deadly: I'll give you a song
That I think is tops:
If you keep up this racket,
I'm calling the cops!
Gonzo: Oh, that was a grouchy one.
Rowlf the Dog: Was there a second verse to that song?