
Acting · 63 years old
Passaic, New Jersey, USA
Ornstein studied acting as a child at the American Academy of Dramatic Arts in New York City, and later studied under Stella Adler. After high school, he enrolled in the Mason Gross School of the Arts. He quit after his first year and moved to New York City to begin working professionally. Ornstein's first film credit was in Crossing Delancey, where he played the minor character "Mickey". Television credits include a recurring role as Detective Bonnaventura on Homicide: Life on the Street, and a two-episode arc on Third Watch, as well as parts in Seinfeld, Law & Order, Law & Order: Special Victims Unit, and Law & Order: Criminal Intent. Ornstein's stage acting credits span twenty-five years worth of new plays in New York City, in addition to creating the role of Louis Ironson in the 1991 World Premiere of Angels in America at the Eureka Theater in San Francisco. Ornstein plays Chuck Marstein on Sons of Anarchy.

Sons of Anarchy
Chuck 'Chucky' Marstein

Seinfeld
Waiter

Homicide: Life on the Street
Detective Bonaventura

Mayans M.C.
Chuck 'Chucky' Marstein

Law & Order: Special Victims Unit
Charles Denis

Third Watch
Banks

Law & Order: Criminal Intent
Howard

Law & Order: Criminal Intent
Philip

Law & Order: Criminal Intent
Florist

NCIS: Los Angeles
Frank Davis

Law & Order
Sklar

Law & Order
Eugene Miller

The Book of Life
Computer Wizard

Kansas City
Jackie Ciro

Crossing Delancey
Mickey

Good Game
Lorenzo Santella Jr.

The Saint
Kal Barko

Zelos
Mordecai

Let It Snow
Lenny Ellis

Blindsided
Det. Sartucci