Donnie Wahlberg, known for his role as Detective Danny Reagan on "Blue Bloods," played the role of Vincent Gray in M. Night Shyamalan's "The Sixth Sense." Vincent is a former child patient of psychologist Malcolm Crowe, played by Bruce Willis. Wahlberg's portrayal of Vincent is both shy and explosively angry, displaying the character's instability. Wahlberg engaged in method acting for the role, starving himself and adopting a loner lifestyle. His actions as Vincent set the tone for the movie and contribute to one of the greatest twists in cinematic history.