Peter Greene, the American actor best known for playing gritty villains in 1990s classics such as Pulp Fiction, The Mask, and The Usual Suspects, has died at the age of 60.

The actor was found unresponsive inside his New York City apartment on Thursday afternoon. His longtime manager, Gregg Edwards, confirmed the news, noting that Greene was pronounced dead at the scene. Authorities say the cause of death is yet to be determined, though foul play is not suspected.

Police reportedly responded to the apartment around 3:25 p.m. after concerns were raised. According to the New York Daily News, music had been playing inside the residence for more than 24 hours, prompting a wellness check.

A neighbour told the outlet that Greene’s body was discovered lying face down on the floor, with visible injuries. Investigators also found a handwritten note on the door of his apartment reading, “I’m still a Westie,” a phrase believed to reference the Irish-American gang once active in New York’s Hell’s Kitchen.

An autopsy is expected to determine the exact cause of death.

Greene rose to prominence after winning Best Actor at the 1994 Taormina International Film Festival for his performance in Clean, Shaven, where he portrayed a man living with schizophrenia. He later became widely recognised for his intense screen presence, playing mafia boss Dorian Tyrell in The Mask, Zed in Quentin Tarantino’s Pulp Fiction, and roles in Under Siege 2, Training Day, and Blue Streak.

Born in Montclair, New Jersey, Greene ran away from home at 15 and lived on the streets of New York City. He later spoke openly about struggles with substance abuse and a turbulent early life. He did not begin acting until his mid-20s but went on to amass nearly 95 film and television credits.

In later years, Greene faced personal challenges, including addiction-related issues and legal troubles, though he continued working intermittently in film and television.

He is survived by a brother and a sister.