In On the Waterfront, who persuades Terry Malloy to testify?

In "On the Waterfront," it is Father Barry who plays a crucial role in persuading Terry Malloy to testify against the corrupt practices of the dockworkers’ union. Father Barry represents moral integrity and courage in the film, advocating for justice and the importance of standing up against oppression. His guidance helps Terry confront his own fears and guilt, prompting him to take a stand for what is right.

The character of Edie Doyle, while significant in inspiring Terry's transformation, primarily serves as a symbol of hope and innocence in his life rather than directly persuading him to testify. Charley Malloy, Terry's brother, has a more conflicting relationship with Terry, often trying to keep him from getting involved with the law and the repercussions that could follow. Killer Johnny, as the antagonist representing violence and fear, does not influence Terry positively; rather, he embodies the threats that keep workers submissive. Therefore, Father Barry's advocacy and moral encouragement make him the pivotal character in convincing Terry to take action.