Mel Blanc continued his work for Warner Brothers and would even make references of his work on The Jack Benny Show, for example, Jack Benny was famous for a lot of things on his show, including yelling "Now cut that out!" out of irritation. Mel would imitate Benny when doing Bugs Bunny voice-over.
While still working for Warner Brothers, Mel would also begin work for Hanna Barbera and on other productions. His most popular Hanna Barbera work was as Barney Rubble in The Flintstones and Mr. Spacely in The Jetsons. He also did vocal effects on Tom and Jerry, was the first voice of Toucan Sam in The Fruit Loops commercial, and provided the voices for Secret Squirrel and Speedy Gonzalez.