The expanding public policy role of high courts heightens concerns over whether societal and political inequalities affect the outcomes of litigation. However, comparative research on this question is limited. This article assesses whether status inequalities between parties and differences in the experience and resources of attorneys influence the selection of cases for judicial review in the Supreme Court of Canada. A series of statistical models reveal that governments are more likely than other parties to influence whether leave is granted but that the experience and resources of lawyers, unlike in the United States, have little impact. The decentralized, low volume and high access features of the Canadian process may explain this finding.