American Animated Mystery Films

"Joe Zieja — Cicada Bugs"

"Jeff Bergman — Eustace Bagge, Courage's Computer and Mayor of Nowhere"

"Jeff Bennett — The General and Self-Help Book"

"Chuck Montgomery — The Lieutenant and Mr. Glockenspiel"

"Paul Schoeffler — Katz, Le Quack and Nowhere Newsman"

"You are a dog! [Courage: Uh-huh.] Me too! [Courage: Oh!]"

"It is your turn, Courage."

"[repeated line] Uh-huh! Uh-huh!"

"[repeated line] Muriel!"

"The things I do for love!"

"Scooby-Doo! Where are you?!"

"Like, why is the water dripping upwards?"

"[repeated line as he scares Courage] Ooga booga booga!"

"[repeated line after scaring Scooby, Shaggy and Courage] It never gets old."

"[last lines; voiceover in the credits] Stupid dogs!"

"Frank Welker — Scooby Doo and Fred Jones"

"Grey Griffin — Daphne Blake and Frau Glockenspiel"

"Matthew Lillard — Shaggy Rogers"

"Kate Micucci — Velma Dinkley and her Tablet"

"Marty Grabstein — Courage and Clown/Mr. McGill"

"Thea White — Muriel Bagge and Rich Old Lady (finalized film role)"

"[After the characters from the book returned, and after the radio voice's comment, Donald still in dazed] Yeah, uh-huh. IMAGINATION. Uh..."

"RELAX, just relax. Let your imagination go."

"Really nothing there, is there? Well, possibly it was only YOUR imagination."

"[As Donald listened to the radio story, the armchair behind him turned to be a gorilla from his imaginary and screamed] YA! [He fled to the front door, a mysterious man appeared in front of the door]."