This chapter offers and defends a theory of criminal culpability according to which to be criminally culpable for a wrongful act is for the act to manifest faulty dispositions for recognizing, weighing, or responding to the legal reasons to refrain from the act. The chapter clarifies this position by explaining what such dispositions are, what it is for them to be faulty, and the conditions under which they are manifested in an act. Under the position presented here, there is a distinction between criminal culpability and moral culpability corresponding to the distinction between legal and moral reasons to refrain from an act. The chapter also distinguishes the view proposed from both character theories of responsibility and quality of will theories.