![The Scooby-Doo/Dynomutt Hour](https://image.tmdb.org/t/p/w342/geO8f6BdJ0E3OcJSzqyS3AakuEx.jpg)
1 Season
24 Episode
The Scooby-Doo/Dynomutt Hour - Season 1 Episode 10 The Frightened Hound Meets Demons Underground / The Wizard of Ooze
A Frightened Hound Meets Demons Underground (Scooby-Doo): Seattle, Washington is ravaged by evil demons. The Wizard of Ooze (Dynomutt): The super pair meets Swamp Rat and Mudmouth, two evil swamp monsters determined to turn Big City into a swamp.
- Year: 1977
- Country: United States of America
- Genre: Animation, Comedy, Family, Kids, Mystery
- Studio: ABC
- Keyword: criminal investigation, cartoon dog
- Director: William Hanna, Joseph Barbera
- Cast: Henry Corden, Allan Melvin, Casey Kasem, Julie McWhirter, Micky Dolenz, Don Messick