Errol M. Cook
Errol M. Cook is a director of Omnicom. He is also a private investor and consultant. Between March 1991 and February 1999, he was a managing director and partner of Warbug Pincus. Previously, Errol M. Cook was a Senior Partner of Ernst & Young from August 1961 to September 1989 and became a Managing Director of Schroders from september 1989 to March 1991. He was also a director of Journal Register Company.