Marcello O. Fiocco: meta-ethics.
Margaret Gilbert: philosophy of social phenomena, ethics, social and political philosophy, philosophy of law, action theory, theory of rational choice.
Sean Greenberg: moral philosophy, especially free-will and virtue ethics.
Jeff Helmreich: ethics, legal philosophy, moral philosophy, philosophy of torts and evidence.
Aaron James: ethics - foundations and moral theory, especially constructivism - political philosophy, especially fairness in the global economy. The relevance for practical reasons of skills, embodiment, attunement, and practical knowledge.

And from our sister Department, Logic and Philosophy of Science

Jeff Barrett : game and decision theory
Simon Huttegger: game and decision theory.
Cailin O'Connor: game and decision theory.
Brian Skyrms: game and decision theory.
P. Kyle Stanford: meta-ethics.