Kidswatter is self-centered, eccentric, and immature, yet at the same time, endearing and something of a "lovable old fool". He fears children. He goes into a fetal position whenever his is scared of something. He has his own weird vocabulary, calling the kids Watchamacallits and Todd his address, 344 South Fairview, the doors Goozacks and the walls, Charisma.
Mr. Kidswatter always calls Myron certain names that begin with M like for example, "Martin", "Morgan", "Melvin" and "Martha". He called him Myron when Myron took his glasses off. His 'helper' Louis is always there to help him because he tends to get himself into more trouble than needed.
Kidswatter doesn't consider the kids much, in fact, on one episode when they were trying to appreciate him, he got afraid. He has an odd relationship with Ms. Mush, the school's cafeteria lady and nurse, being as sometimes he likes her and sometimes doesn't.
Kidswatter has a fondness for coffee, doughnuts, and ice cream.
In the episode, Be True to Your Elf, it is revealed that he has a fear of leprechauns.
In the episode, Louis Gets Some Class, it is revealed that Kidswatter had purple hair when he was younger and that he never graduated from Wayside.
Kidswatter used to be a bullfighter and figure skater