Mayda and the Monster was the second last Zillion Dollar Adventures segment of the Richie Rich series. It was originally aired on ABC on the tenth episode of Season 4 on November 12, 1983. It was the second of two appearances of Mayda Munny in the animated series.
- Nancy Cartwright as Gloria Glad
- Sparky Marcus as Richie Rich
- Frank Welker as Dollar the Dog
- Janet Waldo as Mayda Munny
- This was the last segment aired in the syndicated series. "Computo" was the actual final segment aired on ABC on November 19, 1983 - it was never aired in syndication.