Professor Gizmo

Professor Gizmo is a professor who starred in some episodes of The Ruff and Reddy Show, ever since then, he has gone on to make some other guest appearances. He was voiced by Don Messick.

Wacky Races (2017) cameo
In the episode "The Wacky Always Races Twice" he was seen among the "Low Lives" that Penelope Pitstop and Peter Perfect mentioned.

Appearances

 * Ruff and Reddy
 * 1.7 Muni Mula Mix Up
 * 1.8 Creepy Creature Feature
 * 1.9 The Creepy Creature
 * 1.10 Surprise in the Skies
 * 1.11 Crowds In The Clouds
 * 1.12 Reddy's Rocket Rescue
 * The Funtastic World of Hanna-Barbera issue 3
 * The Man Who Stole Thursday
 * Wacky Races (2017)
 * 2.11 The Wacky Always Races Twice