The Mine of Holland

Voice Cast:

 * Casey Kasem as Stevie Rogers and Shaggy Rogers
 * Paul Winchell as Scotty Doo
 * Don Messick as Scooby Doo
 * David Jason as as Frank Jones
 * Frank Welker as Fred Jones
 * Sandra Kerr as Diane Blake
 * Heather North as Daphne Blake
 * B.J. Ward as Victoria Dinkley and Velma Dinkley

Puppets

 * Jim Henson as Kermit the Frog, Dr. Teeth, Waldorf, Link Hogthrob, Swedish Chef, Rowlf the Dog
 * Frank Oz as Miss Piggy, Fozzie Bear, Animal, Sam the Eagle
 * Jerry Nelson as Camilla, Floyd Pepper, Dr. Strangepork, Lew Zealand, Robin the Frog
 * Richard Hunt as Scooter, Janice, Stater, Beaker, Sweetums
 * Dave Goelz as Gonzo, Zoot, Dr. Bunsen Honeydew
 * Louise Gold as Annie Sue Pig
 * Michael Shires as Matthew Mouse
 * Frank Welker as Douglas Duck
 * Paul Winchell as Boofy