Charles Regan currently serves as the Firm's lead conflicts attorney. Chuck advises on legal and business conflict issues, as well as other professional responsibility matters, that arise in Mayer Brown's offices worldwide. He is a member of the Firm’s Ethics and Loss Prevention Committee. Before taking on his conflicts responsibilities, Chuck was a litigator who focused on benefits and ERISA litigation, and he has extensive experience in pension class actions and commercial litigation. Before joining Mayer Brown, Chuck clerked for the Honorable Marvin E. Aspen of the United States District Court for the Northern District of Illinois (1988-1989).

Spoken Languages

  • English


The University of Chicago, AB

Northwestern University School of Law, JD, cum laude
Managing Editor, Law Review


  • Illinois


  • US District Court for the Northern District of Illinois
  • US Court of Appeals for the Seventh Circuit