The original title of Scooby-Doo, Where Are You! was Mysteries Five, and featured five teenagers: Geoff, Mike, Kelly, Linda, Linda’s brother “W.W.” and their dog, Too Much, who were all members a band. When “The Mysteries Five” were not performing at gigs, they were out solving spooky mysteries involving ghosts, zombies, and other supernatural creatures.
By the time the show was ready for presentation, Geoff and Mike were merged into one character called “Ronnie” (later renamed “Fred”) Kelly was renamed to “Daphne”, Linda was now called “Velma”, and Shaggy (formerly “W.W.”) was no longer her brother. Finally, the title of the show was changed from Mysteries Five to Who’s S-S-Scared?
CBS executives almost passed on the show at first, fearing it would be too spooky for young viewers. However, the show was reworked to make it more comedic and less frightening. The rock band element was removed, and the focus of the show settled more on Shaggy and “Too Much.” Inspired by Frank Sinatra’s scat “doo-be-doo-be-doo” at the end of his recording of “Strangers in the Night” on a flight to one of the development meetings, “Too Much” was rechristened “Scooby-Doo” and the revised show, Scooby-Doo, Where Are You!, was approved for production.