Marina Sirtis is a British-American actress best known for her role as Counselor Deanna Troi on the television series Star Trek: The Next Generation. She was born in London to Greek parents and later moved to the United States to pursue her acting career. After graduating from the Guildhall School of Music and Drama, she began working in British television. Her breakthrough came in 1987 when she was cast as the empathic ship's counselor on Star Trek. She portrayed the character for seven seasons and in four subsequent feature films. Beyond her work in the Star Trek franchise, she has provided voice work for various animated series, including Gargoyles. She also appeared in the critically acclaimed film Crash, which won the Academy Award for Best Picture. Throughout her career, she has made numerous guest appearances on popular television shows like Grey's Anatomy and NCIS. Sirtis became a naturalized United States citizen in 2002. She remains a beloved figure among science fiction fans and continues to participate in conventions worldwide.