This chapter considers whether situationist social psychology impugns accounts of responsible agency that emphasize responsiveness to reasons. It also considers a similar threat arising from the literature on automaticity. The first half of the chapter argues that reasons-responsiveness accounts are genuinely threatened by situationism and automaticity literatures. The second half argues that these threats can largely be met, but that doing so requires abandoning a suite of familiar assumptions and expectations about responsible agency. The chapter goes on to advance a new account of responsible agency that accommodates a variety of worries about situationism and automaticity.