Graduated from the University of Illinois. He worked at Chicago's Second City. He now lives in Los Angeles.
Often plays vendors or merchants.
Hagerty is the only actor besides Mike Myers and Rob Lowe to appear in both the 'Wayne's World' and 'Austin Powers' film franchises. Hagerty and Lowe appeared in "Wayne's World" (1992) and "Austin Powers: The Spy Who Shagged Me" (1999).