A recurring character, Scooby-Dum, portrayed by veteran voice actor Daws Butler, was introduced as Scooby's headstrong, but dimwitted cousin, and featured as a supporting member of the gang in four total episodes of the show. Additionally, Velma's cynicism and sardonic quips were largely toned down in her dialogue. Throughout the series, Shaggy and Scooby's cowardice was further emphasized, providing more comic relief in their dialogue and through visual gags, with the duo playing minimized roles in solving the overarching mysteries. Episodes during the final 1978 season returned to the standard 21 minutes of episodic content, however. would appear in three episodes of its sister show Dynomutt, Dog Wonder during the 1976 season).Įpisodes during the 19 seasons now ran an additional two minutes in length, approximately 23 minutes without intros or closings, as the package show intro sequence, and all credits for the episodes and its sibling shows would be shown at the beginning and end of the programming block, respectively. The show returned to the half-hour format and formula established in the first season of the original Scooby-Doo, Where Are You!, without musical chase scenes, or weekly guest stars (though Mystery Inc. Pat Stevens was brought on as her successor, and would assume the role of the character until the 1979 prime time special, Scooby Goes Hollywood. Nicole Jaffe, who had previously provided the voice of Velma Dinkley in both previous shows, declined to reprise her role, as she had since married and retired from voice acting after the cancellation of The New Scooby-Doo Movies on CBS.
The principle voice cast for Mystery Inc. By 1975, CBS wasn't airing Scooby-Doo, and when former vice president and head of children's programming, Fred Silverman moved to ABC as president, he ordered a show to be created by Joe Ruby and Ken Spears, who helped develop the original series.