“Holy cow! I put myself to sleep! How often do I do that?” —Keswick, Mind Trap
Keswick is one of the main characters of T.U.F.F. Puppy. He is best described as the T.U.F.F. (Turbo Undercover Fighting Force) scientist who creates gadgets for the agents working for T.U.F.F. Keswick is also T.U.F.F.'s very nervous resident genius.
The first clues to Keswick's past were said in "Monkey Business." He implied that he came from another universe called Keswickia. However, this sort of contradicts the fact that he has parents, a sister, and a brother-in-law living in Petropolis. It could be said that they too came from that universe. This also shows that Keswick could possibly not be an animal and that he's a race of his own. In a sense, this means he could be an alien. In Pup Daddy, this is also supported by the fact that he goes through different metamorphoses with age. He also refers to his species by what his name is, a keswick. His parents weren't shown going through a metamorphosis, but it's unknown whether the metamorphosis with age is even treated as canon.
Official Description and Species
Keswick is a species confirmed to be under the name Keswick. He has a supposed "pouch", has webbed feet, looks like a dog, has three hearts, and has gills, and rodent teeth, though he's possibly some sort of rodent or dog. In Toast of T.U.F.F., there has been misleading facts about him being a common species, like a platypus. He has a pouch, webbed feet, three hearts, and he laid an egg in the end of an episode, though he doesn't really have a pouch as his pants held things that lead Dudley to believe it was a pouch. Keswick has a notable speech impediment, which causes him to frequently stutter and involuntarily twitch. His eye color is currently shown black, but his eye color was shown teal/blue in Super Duper Crime Busters as he was in mid-stutter. He can't sing correctly, known for his many attempts of singing "Row, Row, Row Your Boat" and forgetting every other line of the song during "Cruisin' for a Bruisin'". His buck teeth may be a reference to the teeth of Timmy Turner from The Fairly OddParents, another show created by Butch Hartman.
In "True Spies," it is revealed that Keswick is an alien from the planet Keswickia who is wanted by the Keswickian Police for cooking fish at work.
Keswick is a very smart scientist who has made some major contributions to T.U.F.F. with some of his inventions. However, many of his inventions have also caused some harm to the team in the past as well, such as Rita, (some even spit out acid!). He seems to have strained relations with his parents. Contrary to popular culture, he seems to get along well with his in-laws. He also seems to have a strange sense of humor after he makes some sort of joke that no one really seems to get. Keswick also cares about his friends in a valuable way. In Snapnapped, he refused to work for D.O.O.M. no matter how badly the other agents treated him. This means he is a caring friend, and will always be no matter what.
Interactions with Other Characters (Alphabetically)
Keswick and The Chameleon seem to have a small standard relationship, as in Hot Dog, Keswick suggested that he wear a coat, much to The Chameleon's chagrin.
Keswick is loyal to the Chief in a way. They also seem to share a special friendship. Keswick is also known to be the Chief's voice of reason on many occasions.
Keswick and Dudley became fast friends the day Dudley was hired to work for T.U.F.F. Keswick thinks of Dudley as a nuisance sometimes, but they do get along most of the time and seem to have a very good relationship. In The Wrong Stuff, he helped Dudley spy on Kitty and Jack; under the condition that he dress up like a ninja.
In Internal Affairs, Kitty lost a bet and had to take Keswick to the movies. Other than that they seem to have a standard co-worker relationship. However on Kitty's end, she seems to cherish Keswick not only as a co-worker but as a very valuable friend. She was deeply affected over his supposed death in Toast of T.U.F.F., in which R.I.T.A. was thought to have vaporized Keswick. However, it turned out she only "destroyed" Keswick's Hologram. He may not be as fond of her because of his fear of girls.
In Snapnapped, Snaptrap constantly mispronounced his name.
In The Wrong Stuff, it is shown that Keswick fears Snaptrap in person. Upon being growled at by Snaptrap when the two were about to fight, Keswick cowardly fled. However, he soon returned in an ice cream truck with his fudgey bar cannon, which he used to barrage Snaptrap into capture.