An unidentified man approached the woman from behind while she stood on the northbound platform at the 14th Street station at around 4:20 a.m., authorities said.
He grabbed the lower front of her body. She told him to stop, and he shoved her onto the tracks in a random attack.
Two Good Samaritans rushed to her aid and helped her back onto the platform. No train was approaching at the time.
On Saturday, the NYPD released video of the suspect:
VIDEO: Man wanted in subway groping, pushing incident
The woman, a stage actress, suffered a broken wrist and was taken to a hospital for surgery.
She was on the way home to Washington Heights when she was attacked.
The person of interest sought for questioning is described as a man in his 20's, approximately 5'10"-6'0" tall, medium complexion, black hair, goatee, brown eyes, and was last seen wearing a red bomber jacket with multi-colored patches, a black hoody, black denim jeans, carrying a blue back pack, a white construction type helmet, and light colored shoes.