Frank Welker, the voice actor behind Fred Jones and Scooby-Doo, shares some behind-the-scenes stories from his five decades piloting the Mystery Machine.

Frank Welker voiced Fred Jones and Scooby-Doo. Rebecca Sapp/WireImage. In addition to Welker, the original series cast included Casey Kasem as Shaggy, Nicole Jaffe as Velma, Indira Stefanianna as ...

But his first time voicing the dog was in 1979 in "Scooby-Doo Goes Hollywood" as Baby Scooby Doo. Additionally, Welker is original and current voice actor of Fred Jones.

Zac Efron has signed on to voice Fred Jones while Amanda Seyfried will voice Daphne Blake in Warner Bros.' animated Scooby-Doo feature film "Scoob." It was revealed earlier this month that Will ...

The show followed Fred Jones, Daphne Blake, Velma Dinkley, Shaggy Rogers and their talking Great Dane named Scooby-Doo as they travel in their van called the "Mystery Machine" and solve mysteries ...