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 (character) in every "Scooby-Doo" production from 1969 until 1994's "Scooby-Doo! in Arabian Nights". Voice actor Hadley Kay voiced the character for a brief period in 1997, for two episodes of "Johnny Bravo", and a few television commercials. Scott Innes (also the then-voice of Shaggy) voiced Scooby-Doo in four late 1990s/early 2000s direct-to-video films and continued to voice the character regularly for toys and video games (such as "Scooby-Doo! Night of 100 Frights") until 2008. Neil Fanning provided the voice of the computer-generated Scooby-Doo in the 2002 live-action film and its . Frank Welker (also the voice of Fred since 1969) has