Ken Spears died in November 2020, was the co creator of which Cartoon Series?

Ken Spears died in November 2020, was the co creator of which Cartoon Series?

Explanation
  • Ken Spears was an American animator.

  • Ken Spears was best known as a co-creator of the Scooby-Doo franchise, together with Joe Ruby.

  • Ken Spears died on November 6, 2020.