The cast of "Murder 2" includes some of the most talented actors in the Indian film industry. Emraan Hashmi, known for his versatility and range, delivers a stellar performance as the undercover cop. Prachi Desai, who plays the role of Avantika, brings a sense of vulnerability and strength to her character. Randeep Hooda, who plays a pivotal role in the movie, adds to the tension and suspense.