In the play "The Crucible," the character who intentionally interjects critical comments in court to take the focus off himself is C. Thomas Putnam.
While other characters, like Reverend Parris and Judge Hathorne, also play manipulative roles in the court, Thomas Putnam is the only one whose primary motivation is to take the focus off himself. This makes him the most likely candidate for the answer.
Putnam interjects a critical accusation against Proctor before Proctor has a chance to defend himself. This is a clear example of Putnam taking the focus off himself and attempting to shift the blame onto others.
Therefore, considering both motivation and actions, Thomas Putnam is the most accurate answer to the question.