"Don Messick as Boo-Boo Bear, Ranger Smith, Ranger Jones, Mugger, Yogi's conscience, the blonde-haired one of the policemen, TV Reporter, Airport Manager"

"The Flintstone's First Full-Length Comedy!"

"It's the Flintstones!...in their first full-length MUSICAL SPY ADVENTURE!"

"Would you believe?... Fred Flintstone as the super-secret agent who started it all back in 1,000,007 BC!"

"See the slingshot-shoe! He stamps his foot and bye-bye spy! See the helicopter-hat! Spin the bone and away we go! See the beak-a-phone! Fred's secret recording device!"

"Mel Blanc as Barney Rubble, Dino"

"Jean Vander Pyl as Wilma Flintstone, Pebbles Flintstone"

"Janet Waldo as Roberta and Various Voices"

"Paul Frees as Triple X, Green Goose, Bobo, Rock Slag, Mario"

"John Stephenson as George Slate and Various Voices"

"June Foray as Tanya"

"Thurl Ravenscroft as the black-haired one of the policemen"

"There, there, honey. I mean, Cindy. Yogi will take care of you. Don't go away. I'll get the key and set you free."

"[hears what Boo Boo said about Yogi is being sent to the San Diego Zoo by Ranger Smith] The San Diego Zoo? Oh poor Yogi. Gone to the zoo."

"The wrong train?"

"But I'm not the star, I'm a prisoner. [Yogi: Prisoner?] Yes. They keep me locked up in this cage all the time. And that mean dog chases me. And, and that mean man yells at me, and.. And.. [crying] Oh, Yogi, I wanna go home."

"Jellystone won't be the same without Yogi."

"Cindy's lost?"

"Phyllis Diller — Monster's Mate"

"Allen Swift — Felix Flankin"

"Boris Karloff — Baron Boris von Frankenstein"

"Gale Garnett — Francesca"

"Crawl, fly, slither and slink to the underground party of the year!"

"Francesca, you have always been my type. O-negative, isn't it?"

"It's the Silliest Party of the Year... and you're all invited!"

"Ha ha ha. Quoth the raven, "Nevermore". I've done it. Created the means to destroy matter. They must all know. Know that I, Baron von Frankenstein, master of the secret of creation, have now mastered the secret of destruction. The invitations must be sent at once. Oh, what a fine, grand party when they all arrive, eh, my boy?"

"You wanted my vial, you'd kill my nephew for it? Now you shall see that Baron von Frankenstein is not one to cross. True you won't see it for too long a time, but for one second, oh boy."

"Ah... a lifetime of experimentation capped in one small vial. Now to the final step: The infusion of energy."

"And now, friends, you'll see who was the original Batman."

"At long last, a Motion Picture with absolutely no cultural value!!"

"Candy Candido - The Pike, Tiger Madam Mim"

"Barbara Jo Allen - Scullery Maid"

"Martha Wentworth - The Old Lady Squirrel"

"Mel Blanc - Tiger And Talbot (The Dogs)"

"Norman Alden - Sir Kay"

"Richard Reitherman - King Arthur"

"Junius Matthews - Archimedes"

"Alan Napier - Sir Pellinore"

"Pellinore: Cheers, cheers."

"Ector: Cheers!"

"Robert Reitherman - King Arthur"

"Martha Wentworth - Madam Mim"

"Karl Swenson - Merlin"

"Sebastian Cabot - The Narrator, Sir Ector"

"Ector: Here's to London! And here's to Kay! And here's to the banner of the Castle of the Forest Savage!"

"Kay: I don't want the Wart for my squire."

"(Archimedes flies back)"

"Rickie Sorensen - King Arthur"

"Thurl Ravenscroft - Sir Bart"