The purpose of this study is to attempt to trace the ``christological tradition`` to which Jim Casy belongs. This method of previous studies has now largely been achieved. Hitherto, the quest for literary antecedents and parallels for Steinbeck`s portrayal of Casy has largely been confined to trawling through the gospels. What I have tried to do in this essay is to establish Casy`s position in a christological tradition; a tradition stretching from the evangelists themselves, via the battlefields of the Civil War, to writers such as Hayes and Guthrie. Therefore I try to pursue a christological tradition through similarities in Christ-like figures including Jim Casy and Jesus Christ in American literature. Of Course, this trial will not be a wholly new one. Already in the 1960s Edwin Moseley noted parallels between Casy and a particular sort of “Christ figure of the thirties.” However, He errs in characterizing this christology as merely presenting in the last analysis a kind of melodramatic hero who represents the potential goodness in man. I think that Christ came as a leader of the oppressed masses, and as a sacrificial figure. Therefore, as Jim Casy is a primary character, he has a distinguishing mark in the christological tradition, Jim Casy, with his eye-catching initials, is such a Christ figure in this novel.