O’Melveny Worldwide

Cassandra Seto is a litigator with vast experience in copyright and intellectual property issues, complex contract disputes, and business torts. She represents entertainment and media companies including motion picture and television studios, publishing companies, and satellite radio broadcasters, among others.

Cassandra is also actively involved with O’Melveny’s pro bono program. She has advised UCLA’s student newspaper, The Daily Bruin, on issues relating to media law, taught a clinic at UCLA Law School in appellate advocacy, and represented clients in a variety of matters involving educational advocacy, mental health awareness, domestic violence, guardianship, and adoption.

  • Defending a major satellite radio broadcaster in high-profile lawsuits alleging purported “performance rights” in sound recordings made before 1972
  • Representing a publishing company and entertainment studio in lawsuits seeking to recapture copyright and trademark rights in Superman
  • Defending a major media conglomerate in state court, federal court, and administrative proceedings involving copyright and trademark rights in Winnie the Pooh
  • Representing the producers and distributors of the James Bond motion pictures in a copyright infringement lawsuit  
  • Defending motion picture and television studios in various profit-participation disputes
  • Representing a well-known boxer in proceedings before the California Athletic Commission and on appeal
  • Representing an all-star baseball player in a complex partnership dispute
  • Representing a leading energy company in various commercial litigation matters at the trial and appellate levels


Bar Admissions

  • California

Court Admissions

  • US Supreme Court
  • US Court of Appeals for the Second Circuit, Ninth Circuit, Eleventh Circuit, and Federal Circuit
  • US District Court, Central District of California


  • Stanford University, J.D.; Executive Editor, Stanford Law Review
  • University of California at Berkeley, B.A., Psychology and Business Administration, summa cum laude

Honors & Awards

  • Named a Future Star by Benchmark Litigation (2024)
  • Recognized by The Legal 500 US in Media & Entertainment: Litigation (2020, 2022)
  • Named to Variety’s Legal Impact Report (2019, 2020)
  • Named to the 40 & Under Hot List for General Commercial, Media & Entertainment by Benchmark Litigation (2018-2022)
  • Named among “Hollywood’s New Leaders” by Variety (2017)
  • Named a “Rising Star in Media & Entertainment Law” by Law360 (2017)
  • “Most Influential Minority Lawyer,” Los Angeles Business Journal (2016)
  • Member, Law360 Media & Entertainment Practice Group of the Year (2016)

Professional Activities


  • “How Litigation and Legislation Is Shaping the AI Future,” ABA's 2024 Forum on Entertainment and Sports Spring Meeting (April 2024) 


  • “New Election, Same Tune,” (co-author Jordyn Ostroff), Daily Journal (August 14, 2020)
  • “Keeping Private Arbitrations Private,” Los Angeles Lawyer (2008)
  • “Formation of the Venture:  Developing a Business Plan,” Representing Start-Up Companies, Lee R. Petillon & Robert Joe Hull eds. (2003)

Board Member

  • Warren Christopher Scholarship Foundation


  • Leadership Council on Legal Diversity

Clinical Instructor

  • UCLA School of Law, Appellate Advocacy Clinic

Teaching Assistant

  • Federal Pretrial Litigation, Stanford Law School (2006)