

Alan accidentally drinks Bunsen Honeydew's Jekyll-and-Hyde potion, and turns into a rampaging monster. He runs amuck, as the ultra-cute Bun-Bun Brothers sing "Zip-A-Dee-Doo-Dah." When Kermit catches Alan in a net, he turns back into himself. Soon, Kermit takes a sip of the potion himself.
Release Date
Mar 7, 1980
MAIN CAST

Jim Henson
Kermit the Frog, Waldorf, Rowlf the Dog, Link Hogthrob, The Swedish Chef, Dr. Teeth, The Newsman (voice)

Frank Oz
Miss Piggy / Fozzie Bear / Animal / Sam Eagle / Marvin Suggs / George the Janitor (voice)

Jerry Nelson
Floyd Pepper, Dr. Julius Strangepork, Pops, Robin the Frog, Lew Zealand, Louis Kazagger, Chicken, Crazy Harry (voice)

Dave Goelz
Gonzo / Zoot / Beauregard / Dr. Bunsen Honeydew (voice)
GUEST CAST

Alan Arkin
Self - Special Guest Star