Scooby-Doo the series and the billing, in an attempt to boost "Scooby-Doo"s slipping ratings. The 1979–80 episodes, aired under the new title "Scooby-Doo and Scrappy-Doo" as an independent half-hour show, succeeded in regenerating interest in the show. Lennie Weinrib voiced Scrappy in the 1979–80 episodes, with Don Messick assuming the role thereafter. Marla Frumkin replaced Pat Stevens as the voice of Velma mid-season. As a result of "Scooby-Doo and Scrappy-Doo's" success, the entire show was overhauled in 1980 to focus more upon Scrappy-Doo. At this time, Scooby-Doo started to walk and run anthropomorphically on two feet more often, rather than on
Scooby-Doo! The Mystery Begins Kiyoko as Velma and Nick Palatas as Shaggy. Scooby-Doo was created using computer-generated imagery and his voice is provided by Frank Welker, who also was a cast member of the animated series, "Scooby-Doo, Where Are You!" and "The Scooby-Doo Show", providing the voice of Fred. The music is scored by Academy Award-nominee David Newman, who had previously scored the theatrical films "Scooby-Doo" (2002) and "" (2004). The film is dedicated to Lorena Gale, who died during production. Its sequel, "Scooby-Doo! Curse of the Lake Monster", was released on October 16, 2010. In Coolsville, Ohio, four teenagers are accidentally involved in