US animator Joe Ruby, creator of Scooby-Doo

Joe Ruby, who has died aged 87, was an animator who, with his professional partner Ken Spears, brought to television one of its most enduring cartoon heroes, ScoobyDoo, still on screen after 51 years.

They created the talking Great Dane and his friends, four crimesolving teenagers – Shaggy, Fred, Velma and Daphne – for the HannaBarbera studio in 1969.

Fred Silverman, a CBS television executive, wanted the studio to come up with a programme for his American network’s Saturday morning children’s schedule to build on the success of The Archie Show, which starred the fictional bubblegum pop group The Archies, who had a real-life No 1 single with Sugar, Sugar.

After passing on his “scary” concept, based on horror comedy films and characters like those in The Archies or in the TV teen sitcom The Many Loves Of Dobie

Gillis, Ruby and Spears came up with a cartoon titled Mysteries Five, after the name of another pop group – including a cowardly, bongo-playing German shepherd – this time involved in spooky adventures when not playing gigs.

Silverman rejected the idea, wanting a Great Dane instead, and Ruby and Spears revised their concept to feature Dobie Gillisstyle teens, but it was turned down by CBS bosses as being too scary for the audience.

Silverman gave Ruby and Spears instructions to play up the comedy element and had the idea himself for the dog’s name and programme title, Scooby Doo Where Are You!, after hearing Frank Sinatra singing Strangers In The Night, with his ad-libbed “doo-be-doo-be-doo” vocal during the fade-out.

Ruby and Spears made Scooby a brown dog with black spots, blue collar, diamond-shaped gold tag and the ability to run on two legs.

A member of Mystery Inc, a gang of amateur sleuths from California who drive around in a van named the Mystery Machine, Scooby also has a penchant for snacks – handy for bribing him when he is being cowardly while investigating ghostly dramas.

This version was accepted, so Ruby and Spears wrote the first five episodes, then supervised and story-edited the rest of the original series (1969-70).

It was an immediate success, attracting two-thirds of American Saturday-morning viewers, and continued worldwide under many different titles.

The latest series, Scooby-Doo and Guess Who?, was launched in 2019. “We were worried it wouldn’t last but one season,” Ruby said.

Two live-action feature film versions have also been produced.

Animator Joe Ruby feared Scooby-Doo would only last for one series.