Principal Deputy Special Counsel

Ellen Chubin Epstein comes to OSC from the United States Attorney's Office in Washington, D.C., where she worked for seventeen years as an Assistant U.S. Attorney.  Ms. Epstein spent the last eleven years in the Fraud and Public Corruption Section.  There she served as the lead prosecutor in multiple federal trials, led dozens of grand jury investigations, and supervised teams of federal law enforcement agents from agencies including the FBI, IRS, and Offices of Inspector General.  Notably, Ms. Epstein worked on multiple investigations of fraud against the government involving disclosures by whistleblowers.

​Prior to joining the U.S. Attorney's Office, Ms. Epstein was a Senior Trial Attorney in the Office of Special Investigations of the Criminal Division at the U.S. Department of Justice.  There she investigated and prosecuted individuals who assisted the Nazis in persecuting civilians during World War II.  Before joining the U.S. Department of Justice, Ms. Epstein worked in private practice at the law firm of Covington & Burling in Washington, D.C.  She received her law and undergraduate degrees from Harvard University.     


HENRY KERNERSpecial Counsel
ELLEN CHUBIN EPSTEINPrincipal Deputy Special Counsel
BRUCE FONGAssociate Special Counsel, Investigation and Prosecution
BRUCE GIPEChief Operating Officer
KAREN GORMANChief of Retaliation and Disclosure Unit
ANNE GULLICKChief, Dallas Field Office
PATRICK HARTOBEYDirector of Legislative Affairs
JANE JULIANOChief, Alternative Dispute Resolution Unit
KARL KAMMANNChief Financial Officer
ZACHARY KURZCommunications Director
JENNIFER LIChief Information Officer and Information Branch Chief
MARIAMA LIVERPOOLChief, Investigation and Prosecution Division – Headquarters
LOUIS LOPEZAssociate Special Counsel, Investigation and Prosecution – Headquarters
KATHY MCDUFFIEChief Human Capital Officer
CATHERINE MCMULLENChief, Disclosure Unit
ELIZABETH MCMURRAYChief of Retaliation and Disclosure Unit
TRAVIS MILLSAPSDirector of Public Policy
SHIRINE MOAZEDChief, Diversity, Outreach & Training
DARSHAN SHETHChief, Investigation and Prosecution Division – Headquarters
JOSEPH SIEGELMANChief, San Francisco Bay Area Field Office
CHRISTOPHER T. TALLChief, Detroit Field Office
SUSAN K. ULLMANGeneral Counsel
RACHEL VENIERChief, Investigation and Prosecution Division – Headquarters
ANNE WAGNERAssociate Special Counsel
BARBARA WHEELERChief, Case Review Division