|Jim Varney||Ernest P. Worrel/Aster Clement, the governor's student/Auntie Nelda ('Mrs. Brock, Marty's Mother')/The Snake Guy|
|Douglas Seale||Santa Claus, aka 'Seth Applegate'|
|Oliver Clark||Joe Curruthers|
|Noelle Parker||Harmony Star, aka 'Pamela Trenton'|
|Robert Lesser||Martin 'Marty' Brock, Joe's agent|
|Gailard Sartain||Chuck (Storage Agent)|
|Billie Bird||Mary Morrissey|
Santa Claus is looking for his successor, and hapless taxi driver Ernest P. Worrell is just the man to help him out. Traveling to Florida to pass his mantle on to children's show host Joe Carruthers, Santa gets into unexpected trouble, and it's up to Ernest, along with a teen girl named Harmony, to assist Saint Nick with his important mission, or the future of Christmas could be in jeopardy.