Don Messick — Actor (29)
Rockin' with Judy Jetson (1988) [Movie] TMDB IMDb WikiData
Rockin' with Judy Jetson
director: Paul Sommer actor: George O'Hanlon / Penny Singleton
other title: Judy Jetson - Superstar / Bailando Rock con Lucero Sónico
There's intergalactic trouble when the lyrics Judy Jetson wrote for teen heartthrob Sky Rocker are swapped with a secret message from a music-hating witch. Now it's up to Judy, her family, and friends to save rock-and-roll.
The Scooby-Doo/Dynomutt Hour (1976) [TV] WikiData TMDB
The Scooby-Doo/Dynomutt Hour
other title: Scooby-Doo et Dynomutt and The Blue Falcon / Die Scooby-Doo-Show
The Scooby-Doo/Dynomutt Hour is a 60-minute package show produced by Hanna-Barbera Productions in 1976 for ABC Saturday mornings. It marked the first new installments of the cowardly canine since 1973, and contained the following segments: The Scooby-Doo Show and Dynomutt, Dog Wonder.
Scooby's Laff-A Lympics (1977) [TV] IMDb WikiData TMDB
Scooby's Laff-A Lympics
director: Joe Ruby / Ken Spears actor: Don Messick / Daws Butler
other title: Olimpiadi della risata / Die Scooby-Doo Show
Each episode of this series include multiple segments: The first and last were "Laff-A-Lympics" segments, the other ones were "Captain Caveman and the Teen Angels", "Scooby-Doo" and "Dynomutt" segments.

The "Laff-A-Lympics" segments feature 45 Hanna-Barbera cartoon characters (classic and otherwise) competing for gold medals in wacky events. Events include racing on ostriches, camels, kangaroos, rickshaws and unicycles, as well as scavenging for creatures like the Abominable Snowman, vampires, and the Loch Ness Monster.