The Scooby-Doo/Dynomutt Hour - Season 1 - Eps 4: What Now, Lowbrow?
Dog Wonder and B.F., teamed with the Scooby-Doo crimestoppers, meet Lowbrow, a villain desiring to be king of crime employing the knowledge from the books of Big City University to further his dastardly schemes. This primitive thief unwittingly leads Blue Falcon, Dynomutt and Scooby Doo and company to his lair, where they discover his latest plan: robbery of Big City Mint!
About The Scooby-Doo/Dynomutt Hour

Title: The Scooby-Doo/Dynomutt Hour
First Air Date: 1976-09-11
Last Air Date: 1976-12-18
Status: Ended
Rating: 7.9/10 (from 167 votes)
Language: EN
Seasons: 2
Total Episodes: 32
Network: ABC
Genres: Animation, Comedy, Family, Kids, Mystery
Production Companies: Hanna-Barbera Productions
Synopsis
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.
Cast

Henry Corden
(voice)

Allan Melvin
Additional Voices (voice)

Casey Kasem
Shaggy Rogers / Additional Voices (voice)

Julie McWhirter
Additional Voices (voice)

Micky Dolenz
Supporting Voices / Additional Voices (voice)

Don Messick
Scooby-Doo / Additional Voices (voice)

Gary Owens
Blue Falcon (voice)

Virginia Gregg
Additional Voices (voice)

Larry McCormick
(voice)

Heather North
Daphne Blake (voice)