Terrytoons had retired Heckle & Jeckle. Mighty Mouse was entering the end of his 1st CBS run in 1966, now paired with Ralph Bakshi's Mighty Heroes. Meanwhile, the studio was still trying to create new stars, and got into the popular trend of spy satires.
But, James Hound was not even close to King Features' Cool McCool, who debuted the same year from the pen of Bob Kane. Hound (Dayton Allen) was a little more clumsier than McCool, but still got his man.
Scope out "Traffic Trouble", for example: