Kevin Hamilton McDonald was born on May 16th, 1961 in Montreal, Quebec, Canada. His parents were Hamilton, a dental equipment salesman, and Sheila, a homemaker. When he was seven, Kevin's dad was transfered to Burbank California and they lived accross the lot where "Let's Make a Deal" was filmed.
Kevin, the soft-spoken guy, hidden under silly bundles of brown hair, admits that while growing up all he could really do was be funny. He couldn't live up to his fathers dreams of him being a lawyer so he stopped doing his homework and worked on his jokes for the next day.
Kevin has described himself as an overweight, asthmatic child who spent most of his time in front of the TV, studying up on comedy. Kevin began his acting career early, taking theater classes in high school. Kevin later attended Humber College as a theater major, but was kicked out because he could only do comedy. One of the teachers who liked him introduced him to Dave Foley, there by beginning a strong friendship that lasts to this day.
Kevin was married once to Tiffany Lacey. They were married in 1993, and divorced in 1995.