John C McGinley is an American actor. John C McGinley is most notable for his roles as Perry Cox in "Scrubs", Bob Slydell in "Office Space", and Sergeant Red O`Neill in Oliver Stone`s "Platoon". He has also written and directed for television and film. Apart from acting, John C McGinley is also an author and a spokesperson for the National Down Syndrome Society.

John C McGinley, who is one of five children, was born in the Greenwich Village section of New York City, the son of Patricia, a schoolteacher, and Gerald, a stockbroker. His paternal great-grandfather was from Donegal, Ireland. John C McGinley was raised in Millburn, New Jersey, and attended Millburn High School, where he played wide receiver for the school`s football team.

John C McGinley studied acting at Syracuse University, and later at New York University`s Tisch School of the Arts. Upon completing his education, John C McGinley did a variety of different work, including Off Broadway and Broadway productions, and a two-year stint on the soap opera Another World. At the age of 20, John C McGinley was a ball spotter at the 1980 U.S. Open. While on the job, he exchanged a few words with professional golfer Arnold Palmer.