John Stephenson (b. August 9, 1923) is a veteran voice actor, dating back to network radio in the 1950's, who was heard on the Fraggle Rock animated series. Stephenson voiced Doc and Philo and Gunge (though the latter role was often filled by Bob Bergen, especially in the song sequences). He also supplied several character voices in the Creature Shop-production The Flintstones in Viva Rock Vegas, namely an animatronic octopus croupier, the off-screen announcer for Mick Jagged's concert, and the dubbed voice of the wedding minister (played on-camera by Walter Gertz).
In the 1950s and 60s, Stephenson was a frequent announcer/narrator on early television series, serving as the closing credits announcer on I Love Lucy and the voice on the 1967 version Dragnet who solemnly intoned, "And now, the results of the trial." He also supplied countless cartoon voices for Hanna-Barbera, including Doggie Daddy, many villains on the various incarnations of Scooby-Doo, and Mr. Slate in The Flintstones (the latter series inspiring the Creature Shop film of the same name).