David Casey focuses on the litigation of discrimination, non-competition, common law and wage and hour actions and also has extensive experience defending management in all aspects of employment law, including individual and class-wide claims involving:

  • Harassment
  • The Employee Retirement Income Security Act
  • Wrongful termination
  • Fiduciary duty
  • Competition
  • Disclosure of proprietary information

David has tried more than 25 cases to verdict before juries and has successfully defended putative and certified collective actions and class claims seeking relief under:

  • Title VII
  • State anti-discrimination laws
  • The Fair Labor Standards Act
  • State wage and hour laws

He also has designed and implemented large scale reductions-in-force and has defended the age, gender and race-based claims that have arisen consequently.

Additionally, David also counsels employers on a daily basis in many aspects of the employment relationship, from litigation avoidance to terminations, diversity and safeguarding proprietary information. His clients vary in size from small entities to Fortune 500 companies.

A founding member of Littler Mendelson's Boston office, David formerly acted as the office managing shareholder and was a member of the Board of Directors. He also formerly co-chaired the Boston Bar's Labor and Employment section and was an adjunct faculty member at Northeastern University's Law School on whose Dean's Committee he also served.

David previously worked as a clerk for the Honorable Edmund Keville, Massachusetts Appeals Court.

Professional & Community Affiliations


Massachusetts Bar Association


Boston Bar Association


Named, The Best Lawyers in America©


Named, World’s Leading Business Lawyers

Labor and Employment

Chambers Global


Named, America's Leading Lawyers for Business

Chambers USA

2003-2015, 2018

Named, Super Lawyer


Super Lawyers

2012 and 2014

Named, PLC Which Lawyer

14th Edition Yearbook, Labour and Employee Benefits Leading Individuals

Practical Law


Awarded, AV® Peer Review Rating


News, Analysis & Press

Addressing Three Emerging Compliance Issues in the Changing Workplace: Planning and Executing Lawful RIFS and Managing the Requirements of the Massachusetts HealthCare Reform Act and the Data Breach Security Act for MCLE

Emerging Issues in the Changing Workplace Program

March 2009

Littler Mendelson on Employment Law Class Actions

Littler Mendelson on Employment Law Class Actions


David Casey gives insight into the Liberty layoff case

Boston Business Journal

May 2, 2005

Desert Palace v. Costa; Palace Coup or Meet The New Boss Same As The Old Boss

Massachusetts Continuing Legal Education, Inc. ("MCLE"), U.S. Supreme Court Yea


Defending The Sexual Harassment Claim In Massachusetts

National Education Network Sexual Harassment Seminar

December 1994

Internal Investigations And Joint Representation Of The Corporation And Its Managers: Improving The Odds At Russian Roulette

Boston Bar Foundation Continuing Legal Education Seventh Annual Spotlight on Em


The Personnel Records Act And Workplace Privacy: The Right To Know And Correct Information vs. The Privacy Interests Of Others

MCLE Privacy in the Workplace Program

October 1993

High-Tech Supervision And Emerging Privacy Issues: Striking The Right Balance,

Council on Education in Management Personnel Law Update


Strategies For Representing Those Accused Of Sexual Harassment In The Workplace

MCLE Sexual Harassment Seminar

November 1991

AIDS Update

Council on Education in Management Personnel Law Update


Books & Book Chapters

  • Privacy Interests in the Workplace, A Judicial Guide to Labor and Employment Law, Flaschner Judicial Institute, 1990

Speaking Engagements

Noncompetes & Trade Secret Protection: An Employer's Guide To A Big Year of Change

Boston, MA

September 25, 2015
How to Avoid Hiring The Wrong Executive

Boston, MA

April 3, 2014

Massachusetts Delivery Association v. Martha Coakley

United States Courts - District of Massachusetts

April 10, 2013

The Future of Work

The 2012 Executive Employer® Conference

Littler Mendelson, Scottsdale, AZ

May 11, 2012
Social Media Grows Up: The Safe, Legal and Effective Business Use of Social Media

Boston, MA

November 9, 2011
The Next Wave: Wage & Hour Class Actions in Massachusetts

Boston, MA

June 2, 2009
A Benefits Double - Feature

Boston, MA

June 26, 2007
OFCCP's Fiscal Year 2007 Audit Agenda: Compensation Reviews and Selection Processes

Boston, MA

May 10, 2007


  • J.D., Northeastern University School of Law, 1979
  • B.A., Brown University, 1976

Bar Admission



  • U.S. Supreme Court
  • U.S. Court of Appeals, 1st Circuit
  • U.S. District Court, District of Massachusetts