Which of these musicians does not appear in the 2001 film, "Training Day"?

In Training Day (2001), Dr. Dre, Macy Gray, and Snoop Dogg have key roles to play. The hip hop musician, Ludacris was casted in the 2004 film, Crash, which won the 2005 Oscar for Best Picture. In the film, Crash, Ludacris was cast as a vicious carjacker. To the regrets and disappointment of his fans, he never had any role in the 2001 film, Training Day.

In the 1990s and 2000s, hip hop and rap musicians such as Dr. Dre, Ice Cube, Sean Combs, Macy Gray, Queen Latifah, Snoop Dogg, as well as Baby Boy (2001) star Tyrese Gibson, and others performed in urban ghetto action films. For the most part, these musicians appear in their films in stereotypical roles as criminals. They mainly performed their roles in the hopes of luring their fans to the movie.

Also not only have rap and hip hop musicians appeared in high action movies that are set in the ghetto, a small number of these actors have been able to receive major awards (MTV Movie Awards, Golden Globe Awards, Screen Actors Guild Awards, Independent Spirit Awards, etc.).

In Training Day, although he never had a career as a musician, Denzel Washington known for his exceptional acting won the top 2002 Academy Award for Best Actor.