Scooby-Doo
The first episode of "Scooby-Doo, Where Are You!" "What a Night for a Knight" debuted on the CBS network Saturday, September 13, 1969. The original voice cast featured veteran voice actor Don Messick as Scooby-Doo, radio DJ Casey Kasem (later host of radio's syndicated "American Top 40") as Shaggy, actor Frank Welker (later a veteran voice actor in his own right) as Fred, actress Nicole Jaffe as Velma, and musician Indira Stefanianna Christopherson as Daphne. Scooby's speech patterns closely resembled an earlier cartoon dog, Astro from "The Jetsons" (1962–63), also voiced by Messick. Seventeen episodes of "Scooby-Doo Where are You!" were produced in 1969–70. The series theme song was written by David Mook and Ben Raleigh, and performed by Larry Marks.
List of Scooby-Doo characters
Scooby-Doo is the eponymous character in the "Scooby-Doo" animated television series created by the popular American animation company Hanna-Barbera. Scooby-Doo is the pet and lifelong companion of Shaggy Rogers and in many iterations, including the original series, is regarded as a unique anthropomorphic Great Dane dog who is able to speak in broken English, unlike most other dogs in his reality, and usually puts the letter R in front of words spoken. Other incarnations, such as "A Pup Named Scooby-Doo", present talking dogs like Scooby as quite common.