Who Shrunk Saturday Morning? (1989) — Cast
Cast
| Don Messick | Smurf |
| Lark Voorhies | Lisa |
| Ross Bagdasarian, Jr. | Alvin |
| Mario López | A.C. |
| Mark-Paul Gosselaar | Zack |
| John Moschitta Jr. | Flash |
| Tiffani-Amber Thiessen | Kelly |
| John Candy | Himself |
| Dustin Diamond | Screech |
| Ed Alonzo | Verden Fell (archive footage) |
| Elizabeth Berkley | Constance Spano |
| Paul Fusco | Alf |
| Robert Ito | Miyagi |
| Marsha Warfield | Ms. Jäger |
| Matt Hill | Keene Mordaunt |
| Sherman Hemsley | Programmer |
| Dennis Haskins | Verden Fell (archive footage) |
Crew
| Bradley Wigor | Executive Producer |
| Joseph Maurer | Writer |
| Bradley Wigor | Writer |
| Carol Kahl | Producer |
| Doug Rogers | Director |
| Joseph Maurer | Executive Producer |