Kevin is the teddy bear accountant who is a bit slow in the office. He likes to look at inappropriate stuff on the internet, and loves potty humor (who doesn't, right?)
Anyhow, Kevin was engaged 
for a while to a pretty girl, but she somehow broke it off. It might have been due to his weight, or his foot odor condition that Angela always
mocks. Kevin and Angela have a rocky relationship at best, as she constantly criticizes his performance or lack thereof.
Kevin is in a Police cover band called Scrantonicity 2; before that, he was in Scrantonicity. Not sure what happened there, but they did play at Phyllis' wedding. They offered to play at Pam and Roy's wedding, but that was cancelled... no word on whether or nott they will play at Jim and Pam's or Andy and Angela's wedding.
Oscar, Kevin, and Angela were part of a 
mini-series called "The Office - The Accountants" that aired during the 2008 Writers Strike in Hollywood. $3000.00
had gone missing from the books, and they set about trying to find it. The obvious suspect was Michael, who probably logged it as a business expense
at Hooters, but it eventually turned out to be Angela's fault, as she logged an equipment depreciation twice! Said Kevin, "This is the best day of my life!"