Colin Underwood focuses his practice on complex commercial litigation, with an emphasis on antitrust and intellectual property.

Colin West is an experienced and award-winning litigator and trial lawyer, with an emphasis on antitrust, class actions and other high-stakes litigation.

Cortlin Lannin is an associate in the firm’s San Francisco office. His practice focuses primarily on defending complex class action and antitrust litigations, including antitrust cases implicating technology industries and issues.

Courtney Dyer is a counsel in O’Melveny’s Washington, DC office and a member of the Antitrust and Competition Practice. Courtney’s areas of focus include government merger and non-merger investigations, private antitrust litigation.

Craig Waldman represents companies in antitrust government investigations and enforcement actions, merger reviews, counseling, and antitrust private litigation.

Craig Stewart focuses on appellate litigation and on legal strategy and complex motions in trial court litigation. He has represented clients in dozens of appeals in federal and state courts and has orally argued in the United States.

Craig de Recat is a partner in the firm's Los Angeles office and the Cochair of the Trial Practice Group within the Litigation Division.