In this paper, we defend the general thesis that intentions are relevant not only to moral permissibility and impermissibility, but also to criminal wrongdoing, as well as a specific version of the Doctrine of Double Effect that we believe can help solve some challenging puzzles in the criminal law. We begin by answering some recent arguments that marginalize or eliminate the role of intentions as components of criminal wrongdoing [e.g., Alexander and Ferzan, Chiao, Walen ]. We then turn to some (...) influential theories that articulate a direct role for intentions [e.g., Duff, Husak ]. While we endorse the commitment to such a role for intentions, we believe that extant theories have not yet been able to adequately address certain objections or solve certain puzzles, such as that some attempt convictions require criminal intent when the crime attempted, if successful, requires only foresight, and that some intended harms appear to be no more serious than non-intended ones of the same magnitude, for example. Drawing on a variety of resources, including the specific version of the Doctrine of Double Effect we have developed in recent published work, we present solutions to these puzzles, which in turn provide mutual support for our general approach to the role of intentions and for thinking that using others as means is itself a special kind of wrongdoing. (shrink)