McLeish hates dogs and is always looking for a promotion from the Mayor, his brother-in-law. He seems to be a dogcatcher because it was a low-ranking government job where he could get a promotion and impress his brother-in-law. He does not care much about the well-being of the dogs in Shelter 17 and will refuse to let a potential dog-owner adopt a dog if he feels that he is busy, although in "McLeish Unleashed" it is shown that he does has a soft spot for dogs. He even adopts one of his own in "I Heard the Barks on Christmas Eve".
He is afraid of his mother, Agatha McLeish, but at the same time craves her approval. He also shown to be unintelligent in a few episodes.
In "McLeish Unleashed", he gets a promotion to Sewage and Waste Water Management, and while he enjoyed his new job, he became disgusted with the way his replacement, Milton Feltwaddle ran the pound and came back, taking back his job.
In "Good Dog, McLeish!", he was accidentally hypnotized into thinking that he was a dog, and ended up joining the Pound Puppies on a mission. When he snapped out of his hypnosis, he remembered nothing of the experience.
- Official character page on Hubnetwork.com